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107-575: Before the advent of postal codes and the post office, postal systems would route items to a specific post office for receipt or delivery. During the 19th century in the United States , this often led to smaller communities being renamed after their post offices, particularly after the Post Office Department began to require that post office names not be duplicated within a state . The term "post-office" has been in use since

214-644: A limited engagement at Mayi involving the assassination of the Chanyu would throw the Xiongnu realm into chaos and benefit the Han. When this plot failed in 133 BC, Emperor Wu launched a series of massive military invasions into Xiongnu territory. The assault culminated in 119 BC at the Battle of Mobei , when Han commanders Huo Qubing ( d.  117 BC ) and Wei Qing ( d.  106 BC ) forced

321-595: A Greek sailor had visited. Emperor Zhang 's ( r.  75–88 AD ) reign came to be viewed by later Eastern Han scholars as the high point of the dynastic house. Subsequent reigns were increasingly marked by eunuch intervention in court politics and their involvement in the violent power struggles of the imperial consort clans . In 92 AD, with the aid of the eunuch Zheng Zhong ( d.  107 AD ), Emperor He ( r.  88–105 AD ) had Empress Dowager Dou ( d.  97 AD ) put under house arrest and her clan stripped of power. This

428-669: A certain code. See also postcode lottery . In Brazil the 8-digit postcodes are an evolution of the five-digit area postal codes. In the 1990s the Brazilian five-digit postal code (illustrated), DDDDD , received a three-digit suffix DDDDD-SSS , but this suffix is not directly related to the administrative district hierarchy. The suffix was created only for logistic reasons. The postal code assignment can be assigned to individual land lots in some special cases – in Brazil, they are named "large receivers" and receive suffixes 900–959. It

535-463: A change which debased the value of coinage. Although these reforms provoked considerable opposition, Wang's regime met its ultimate downfall with the massive floods of c.  3  AD and 11 AD. Gradual silt build-up in the Yellow River had raised its water level and overwhelmed the flood control works . The Yellow River split into two new branches: one emptying to the north and

642-448: A coalition of former officials and officers against Dong, who burned Luoyang to the ground and resettled the court at Chang'an in May 191 AD. Dong Zhuo later poisoned Emperor Shao. Dong was killed by his adopted son Lü Bu ( d.  198 AD ) in a plot hatched by Wang Yun ( d.  192 AD ). Emperor Xian fled from Chang'an in 195 AD to the ruins of Luoyang. Xian

749-416: A coup against the eunuchs Hou Lan ( d.  172 AD ), Cao Jie ( d.  181 AD ), and Wang Fu ( 王甫 ). When the plot was uncovered, the eunuchs arrested Empress Dowager Dou ( d.  172 AD ) and Chen Fan. General Zhang Huan ( 張奐 ) favoured the eunuchs. He and his troops confronted Dou Wu and his retainers at the palace gate where each side shouted accusations of treason against

856-527: A descendant of Emperor Jing ( r.  157–141 BC ), attempted to restore the Han dynasty and occupied Chang'an as his capital. However, he was overwhelmed by the Red Eyebrow rebels who deposed, assassinated, and replaced him with the puppet monarch Liu Penzi . Gengshi's distant cousin Liu Xiu, known posthumously as Emperor Guangwu ( r.  25–57 AD ), after distinguishing himself at

963-402: A letter. The outward postcode and the leading numeric of the inward postcode in combination forms a postal sector, and this usually corresponds to a couple of thousand properties. Han dynasty This is an accepted version of this page The Han dynasty was an imperial dynasty of China (202 BC – 9 AD, 25–220 AD) established by Liu Bang and ruled by

1070-442: A numeric postcode format of four or five digits is commonly used) the numeric postal code is sometimes prefixed with a country code when sending international mail to that country. Postal services have their own formats and placement rules for postal codes. In most English-speaking countries, the postal code forms the last item of the address, following the city or town name, whereas in most continental European countries it precedes

1177-478: A quarter of a mile (400 metres) apart. The structure is alphanumeric, with the following six valid formats, as defined by BS 7666: There are always two halves: the separation between outward and inward postcodes is indicated by one space. The outward postcode covers a unique area and has two parts which may in total be two, three or four characters in length. A postcode area of one or two letters, followed by one or two numbers, followed in some parts of London by

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1284-578: A request by Kushan ruler Vima Kadphises ( r.   c.  90  – c.  100 AD –  ) for a marriage alliance with the Han was rejected in AD ;90, he sent his forces to Wakhan (modern-day Afghanistan) to attack Ban Chao. The conflict ended with the Kushans withdrawing because of lack of supplies. In AD 91, the office of Protector General of the Western Regions

1391-650: A result of a new postcode system being introduced. Some postal code systems, like those of Ecuador and Costa Rica , show an exact agreement with the hierarchy of administrative divisions . Format of six digit numeric (eight digit alphanumeric) postal codes in Ecuador , introduced in December 2007: ECAABBCC Format of five digit numeric Postal codes in Costa Rica , introduced in 2007: ABBCC In Costa Rica these codes were originally used as district identifiers by

1498-428: A series of reforms that limited the power of these kingdoms in 145, dividing their former territories into new commanderies under central control. Kings were no longer able to appoint their own staff; this duty was assumed by the imperial court. Kings became nominal heads of their fiefs and collected a portion of tax revenues as their personal incomes. The kingdoms were never entirely abolished and existed throughout

1605-575: A single exception, these codes are in the format: ANN XXXX The single exception is the Dublin D6W postal district. It is the only routing key area in the country that takes the format ANA instead of ANN: D6W XXXX While it is not intended to replace addresses, in theory simply providing a seven-character Eircode would locate any Irish delivery address. For example, the Irish Parliament Dáil Éireann is: D02 A272 Postal codes in

1712-545: A successful overthrow of her regime to enthrone Emperor Shun of Han ( r.  125–144 AD ). Yan was placed under house arrest, her relatives were either killed or exiled, and her eunuch allies were slaughtered. The regent Liang Ji ( d.  159 AD ), brother of Empress Liang Na ( d.  150 AD ), had the brother-in-law of Consort Deng Mengnü ( d.  165 AD ) killed after Deng Mengnü resisted Liang Ji's attempts to control her. Afterward, Emperor Huan employed eunuchs to depose Liang Ji, who

1819-403: A two digit numeric code can represent 100 locations, a two character alphanumeric code using ten numbers and twenty letters can represent 900 locations. The independent nations using alphanumeric postal code systems are: Countries which prefix their postal codes with a fixed group of letters, indicating a country code, include Andorra , Azerbaijan , Barbados , Ecuador and Saint Vincent and

1926-444: A unique, six-digit postal code . For domestic properties, an individual postcode may cover up to 100 properties in contiguous proximity (e.g. a short section of a populous road, or a group of less populous neighbouring roads). The postcode together with the number or name of a property is not always unique, particularly in rural areas. For example, GL20 8NX/1 might refer to either 1 Frampton Cottages or 1 Frampton Farm Cottages, roughly

2033-474: A war to determine who would have hegemony over China, which had fissured into Eighteen Kingdoms , each claiming allegiance to either Xiang Yu or Liu Bang. Although Xiang Yu proved to be an effective commander, Liu Bang defeated him at the Battle of Gaixia (202 BC) in modern-day Anhui . Liu Bang assumed the title of Emperor at the urging of his followers and is known posthumously as Emperor Gaozu ( r.  202–195 BC ). Chang'an (modern Xi'an)

2140-600: Is an error to associate the postal code with the whole land lot area (illustrated). A postal code is often related to a land lot , but postal codes are usually related to access points on streets. Small or middle-sized houses, in general, only have a single main gate, which is the delivery point. Parks, large businesses such as shopping centers and big houses, may have more than one entrance and more than one delivery point. Czechoslovakia introduced Postal Routing Numbers (PSČ – poštovní směrovací čísla) in 1973. The code consists of 5 digits formatted into two groups: NNN NN. Originally,

2247-400: Is identified by its PIN. Post offices coming under Department of Posts, Ministry of Communication, Government of India have a history of one hundred fifty years. Private courier and delivery services often have offices as well, although these are usually not called "post offices", except in the case of Germany , which has fully privatised its national postal system . As abbreviation PO

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2354-464: Is instead known as a sorting office or delivery office, which may have a large central area known as a sorting or postal hall. Integrated facilities combining mail processing with railway stations or airports are known as mail exchanges. In India , post offices are found in almost every village having panchayat (a "village council"), towns, cities, and throughout the geographical area of India. India's postal system changed its name to India Post after

2461-493: Is now northern Sichuan and southern Shaanxi , was not quelled until 215 AD. Zhang Jue's massive rebellion across eight provinces was annihilated by Han forces within a year; however, the following decades saw much smaller recurrent uprisings. Although the Yellow Turbans were defeated, many generals appointed during the crisis never disbanded their assembled militias and used these troops to amass power outside of

2568-602: Is recorded in the Weilüe and Book of Later Han to have reached the court of Emperor Huan of Han ( r.  146–168 AD ) in AD 166, yet Rafe de Crespigny asserts that this was most likely a group of Roman merchants . In addition to Roman glasswares and coins found in China, Roman medallions from the reign of Antoninus Pius and his adopted son Marcus Aurelius have been found at Óc Eo in Vietnam. This

2675-529: Is the French CEDEX system. There are a number of synonyms for postal code; some are country-specific: The development of postal codes happened first in large cities. Postal codes began with postal district numbers (or postal zone numbers) within large cities. London was first subdivided into 10 districts in 1857 (EC (East Central), WC (West Central), N, NE, E, SE, S, SW, W, and NW), four were created to cover Liverpool in 1864; and Manchester / Salford

2782-650: Is the French Cedex system. Before postal codes as described here were used, large cities were often divided into postal zones or postal districts, usually numbered from 1 upwards within each city. The newer postal code systems often incorporate the old zone numbers, as with London postal district numbers, for example. Ireland still uses postal district numbers in Dublin . In New Zealand, Auckland , Wellington and Christchurch were divided into postal zones, but these fell into disuse, and have now become redundant as

2889-433: Is used, together with GPO for General Post Office and LPO for Licensed Post Office. There is evidence of corps of royal couriers disseminating the decrees of Egyptian pharaohs as early as 2400   BCE, and it is possible that the service greatly precedes that date. Similarly, there may be ancient organised systems of post houses providing mounted courier service, although sources vary as to precisely who initiated

2996-538: The Battle of Kunyang in 23 AD, was urged to succeed Gengshi as emperor. Under Guangwu's rule, the Han Empire was restored. Guangwu made Luoyang his capital in 25 AD, and by 27 his officers Deng Yu and Feng Yi had forced the Red Eyebrows to surrender and executed their leaders for treason . From 26 until 36 AD, Emperor Guangwu had to wage war against other regional warlords who claimed

3103-524: The Battle of Zhizhi , in modern Taraz , Kazakhstan. In 121 BC, Han forces expelled the Xiongnu from a vast territory spanning the Hexi Corridor to Lop Nur . They repelled a joint Xiongnu- Qiang invasion of this northwestern territory in 111 BC. In that same year, the Han court established four new frontier commanderies in this region to consolidate their control: Jiuquan , Zhangyi , Dunhuang , and Wuwei . The majority of people on

3210-743: The Buyeo Kingdom in Manchuria to the Ili River of the Wusun people. The Xianbei reached their apogee under Tanshihuai ( d.  AD 181 ), who consistently defeated Chinese armies. However, Tanshihuai's confederation disintegrated after his death. Ban Chao ( d.  AD 102 ) enlisted the aid of the Kushan Empire , which controlled territory across South and Central Asia, to subdue Kashgar and its ally Sogdiana. When

3317-816: The Chu–Han Contention , the resulting Han dynasty was named after the Hanzhong fief. China's first imperial dynasty was the Qin dynasty (221–207 BC). The Qin united the Chinese Warring States by conquest, but their regime became unstable after the death of the first emperor Qin Shi Huang . Within four years, the dynasty's authority had collapsed in a rebellion. Two former rebel leaders, Xiang Yu ( d.  202 BC ) of Chu and Liu Bang ( d.  195 BC ) of Han , engaged in

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3424-550: The Eastern Han (25–220 AD). Spanning over four centuries, the Han dynasty is considered a golden age in Chinese history , and had a permanent impact on Chinese identity in later periods. The majority ethnic group of modern China refer to themselves as the " Han people " or "Han Chinese". The spoken Chinese and written Chinese are referred to respectively as the "Han language" and " Han characters ". The Han emperor

3531-763: The Greco-Bactrian Kingdom ); he also gathered information on Shendu (the Indus River valley) and Anxi (the Parthian Empire ). All of these countries eventually received Han embassies. These connections marked the beginning of the Silk Road trade network that extended to the Roman Empire , bringing goods like Chinese silk and Roman glasswares between the two. From c.  115 BC until c.  60 BC , Han forces fought

3638-552: The Holy Roman Empire . The British Postal Museum claims that the oldest functioning post office in the world is on High Street in Sanquhar , Scotland . The post office has functioned continuously since 1712, during which horses and stagecoaches were used to carry mail. Rural parts of Canada in the 19th century utilised the way office system. Villagers could leave their letters at the way office which were then taken to

3745-762: The National Institute of Statistics and Census of Costa Rica and the Administrative Territorial Division , and continue to be equivalent. The first two digits of the postal codes in Turkey correspond to the provinces and each province has assigned only one number. They are the same for them as in ISO 3166-2:TR . The first two digits of the postal codes in Vietnam indicate a province . Some provinces have one, other have several two digit numbers assigned. The numbers differ from

3852-749: The Northwest Territories and Nunavut share the letter X. The first two digits of the postal codes in Germany define areas independently of administrative regions. The coding space of the first digit is fully used (0–9); that of the first two combined is utilized to 89%, i.e. there are 89 postal zones defined. Zone 11 is non-geographic. Royal Mail designed the postal codes in the United Kingdom mostly for efficient distribution. Nevertheless, people associated codes with certain areas, leading to some people wanting or not wanting to have

3959-596: The Pack-Station for package delivery , including both drop-off and pickup, in 2001. In the 2000s, the United States Postal Service began to install Automated Postal Centers (APCs) in many locations in both post offices, for when they are closed or busy, and retail locations. APCs can print postage and accept mail and small packages. Postal code A postal code (also known locally in various English-speaking countries throughout

4066-537: The Rebellion of the Seven States . From the reign of Emperor Wu ( r.  141–87 BC ) onward, the Chinese court officially sponsored Confucianism in education and court politics, synthesized with the cosmology of later scholars such as Dong Zhongshu . The Han dynasty oversaw periods of economic prosperity as well as significant growth in the money economy that had first been established during

4173-467: The Xiongnu , a nomadic confederation centred in the eastern Eurasian steppe . The Xiongnu defeated the Han in 200 BC , prompting the Han to appease the Xiongnu with a policy of marriage alliance and payments of tribute, though the Xiongnu continued to raid the Han's northern borders. Han policy changed in 133 BC, under Emperor Wu , when Han forces began a series of military campaigns to quell

4280-584: The Xiongnu , who were estranged from Han until their leader Bi ( 比 ), a rival claimant to the throne against his cousin Punu ( 蒲奴 ), submitted to Han as a tributary vassal in AD 50. This created two rival Xiongnu states: the Southern Xiongnu led by Bi, an ally of Han, and the Northern Xiongnu led by Punu, an enemy of Han. During the turbulent reign of Wang Mang, China lost control over

4387-575: The Yellow Turban Rebellion and Five Pecks of Rice Rebellion in 184 AD, largely because the court did not want to continue to alienate a significant portion of the gentry class who might otherwise join the rebellions. The Yellow Turbans and Five-Pecks-of-Rice adherents belonged to two different hierarchical Taoist religious societies led by faith healers Zhang Jue ( d.  184 AD ) and Zhang Lu ( d.  216 AD ), respectively. Zhang Lu's rebellion, in what

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4494-607: The Zhou dynasty ( c.  1050  – 256 BC). The coinage minted by the central government in 119 BC remained the standard in China until the Tang dynasty (618–907 AD). The period saw a number of limited institutional innovations. To finance its military campaigns and the settlement of newly conquered frontier territories, the Han government nationalised private salt and iron industries in 117 BC, creating government monopolies that were later repealed during

4601-520: The 1650s, shortly after the legalisation of private mail services in England in 1635. In early modern England, post riders — mounted couriers —were placed, or "posted", every few hours along post roads at posting houses (also known as post houses) between major cities, or " post towns ". These stables or inns permitted important correspondence to travel without delay. In early America, post offices were also known as stations. This term, as well as

4708-477: The 2000 A.D., post offices would collect fees for radio licenses, recruitment for government jobs, and the operation of public call telephone (PCO) booths. Postmen would deliver letters, money orders, and parcels to places that are within the assigned area of a particular post office. Each Indian post office is assigned a unique six-digit code called the Postal Index Number , or PIN. Each post office

4815-499: The Eastern period. There were significant advances in science and technology during the Han period, including the emergence of papermaking , rudders for steering ships, negative numbers in mathematics , raised-relief maps , hydraulic -powered armillary spheres for astronomy , and seismometers that discerned the cardinal direction of distant earthquakes by use of inverted pendulums . The Han dynasty had many conflicts with

4922-680: The Grenadines . ISO 3166-1 alpha-2 country codes were recommended by the European Committee for Standardization as well as the Universal Postal Union to be used in conjunction with postal codes starting in 1994, but they have not become widely used. Andorra , Azerbaijan , Barbados , Ecuador , Latvia and Saint Vincent and the Grenadines use the ISO 3166-1 alpha-2 as a prefix in their postal codes. In some countries (such as in continental Europe , where

5029-452: The Han as equal partners in a royal marriage alliance, but the Han were forced to send large amounts of tribute items such as silk clothes, food, and wine to the Xiongnu. Despite the tribute and negotiation between Laoshang Chanyu ( r.  174–160 BC ) and Emperor Wen ( r.  180–157 BC ) to reopen border markets, many of the Chanyu 's subordinates chose not to obey

5136-689: The House of Liu. The dynasty was preceded by the short-lived Qin dynasty (221–206 BC) and a warring interregnum known as the Chu–Han Contention (206–202 BC), and it was succeeded by the Three Kingdoms period (220–280 AD). The dynasty was briefly interrupted by the Xin dynasty (9–23 AD) established by the usurping regent Wang Mang , and is thus separated into two periods—the Western Han (202 BC – 9 AD) and

5243-726: The Imperial University on a dubious charge of treason. In 167 AD, the Grand Commandant Dou Wu ( d.  168 AD ) convinced his son-in-law, Emperor Huan, to release them. However, the emperor permanently barred Li Ying and his associates from serving in office, marking the beginning of the Partisan Prohibitions . Following Huan's death, Dou Wu and the Grand Tutor Chen Fan ( d.  168 AD ) attempted

5350-645: The Netherlands , known as postcodes, are alphanumeric, consisting of four digits followed by a space and two letters (NNNN AA). Adding the house number to the postcode will identify the address, making the street name and town name redundant. For example: 2597 GV 75 will direct a postal delivery to Theo Mann-Bouwmeesterlaan 75, 's-Gravenhage (the International School of The Hague). Since 1 September 1995, every building in Singapore has been given

5457-693: The Tarim Basin, which was conquered by the Northern Xiongnu in AD 63 and used as a base to invade the Hexi Corridor in Gansu . Dou Gu ( d.  88 AD ) defeated the Northern Xiongnu at the Battle of Yiwulu in AD 73, evicting them from Turpan and chasing them as far as Lake Barkol before establishing a garrison at Hami. After the new Protector General of the Western Regions Chen Mu ( d.  AD 75 )

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5564-514: The Xiongnu court to flee north of the Gobi Desert , and Han forces reached as far north as Lake Baikal . After Wu's reign, Han forces continued to fight the Xiongnu. The Xiongnu leader Huhanye ( r.  58–31 BC ) finally submitted to the Han as a tributary vassal in 51 BC. Huhanye's rival claimant to the throne, Zhizhi Chanyu ( r.  56–36 BC ), was killed by Han forces under Chen Tang and Gan Yanshou ( 甘延壽 ) at

5671-482: The Xiongnu over control of the oasis city-states in the Tarim Basin. The Han was eventually victorious and established the Protectorate of the Western Regions in 60 BC, which dealt with the region's defence and foreign affairs. The Han also expanded southward . The naval conquest of Nanyue in 111 BC expanded the Han realm into what are now modern Guangdong , Guangxi , and northern Vietnam. Yunnan

5778-487: The Xiongnu. The Xiongnu were eventually defeated and forced to accept a status as Han vassals , and the Xiongnu confederation fragmented. The Han conquered the Hexi Corridor and Inner Asian territory of the Tarim Basin from the Xiongnu, helping to establish the Silk Road . The lands north of the Han's borders were later overrun by the nomadic Xianbei confederation. Emperor Wu also launched successful conquests in

5885-546: The Yuan brothers, Zhang committed suicide by jumping into the Yellow River. General Dong Zhuo ( d.  192 AD ) found the young emperor and his brother wandering in the countryside. He escorted them safely back to the capital and was made Minister of Works , taking control of Luoyang and forcing Yuan Shao to flee. After Dong Zhuo demoted Emperor Shao and promoted his brother Liu Xie as Emperor Xian, Yuan Shao led

5992-579: The advent of private courier companies in the 1990s. It is run by the Indian government's Department of Posts. India Post accepts and delivers inland letters, postcards, parcels, postal stamps, and money orders (money transfers). Few post offices in India offer speed post (fast delivery) and payments or bank savings services. It is also uncommon for Indian post offices to sell insurance policies or accept payment for electricity, landline telephone, or gas bills. Until

6099-528: The capital was moved eastward to Luoyang. The era from his reign until the fall of Han is known as the Eastern Han or Later Han (25–220 AD). The Eastern Han ( traditional Chinese : 東漢 ; simplified Chinese : 东汉 ; pinyin : Dōnghàn ), also known as the Later Han ( 後漢 ; 后汉 ; Hòuhàn ), formally began on 5 August AD 25, when Liu Xiu became Emperor Guangwu of Han . During

6206-434: The collapsing imperial authority. General-in-chief He Jin ( d.  189 AD ), half-brother to Empress He ( d.  189 AD ), plotted with Yuan Shao ( d.  202 AD ) to overthrow the eunuchs by having several generals march to the outskirts of the capital. There, in a written petition to Empress He, they demanded the eunuchs' execution. After a period of hesitation, Empress He consented. When

6313-490: The emperor was often a minor, ruled over by a regent such as the empress dowager or one of her male relatives. Ranked immediately below the emperor were the kings who were of the same Liu family clan. The rest of society, including nobles lower than kings and all commoners excluding slaves, belonged to one of twenty ranks ( ershi gongcheng 二十公乘 ). Each successive rank gave its holder greater pensions and legal privileges. The highest rank, of full marquess , came with

6420-593: The empire . The Han dynasty came to an end in 220 AD when Cao Pi , king of Wei , usurped the throne from Emperor Xian . According to the Records of the Grand Historian , after the collapse of the Qin dynasty the hegemon Xiang Yu appointed Liu Bang as prince of the small fief of Hanzhong , named after its location on the Han River (in modern southwest Shaanxi ). Following Liu Bang's victory in

6527-431: The empresses and empresses dowager . Imperial authority was also seriously challenged by large Taoist religious societies which instigated the Yellow Turban Rebellion and the Five Pecks of Rice Rebellion . Following the death of Emperor Ling ( r.  168–189 AD ), the palace eunuchs were massacred by military officers, allowing members of the aristocracy and military governors to become warlords and divide

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6634-575: The eunuchs discovered this, however, they had her brother He Miao ( 何苗 ) rescind the order. The eunuchs assassinated He Jin on 22 September 189. Yuan Shao then besieged Luoyang's Northern Palace while his brother Yuan Shu ( d.  199 AD ) besieged the Southern Palace. On September 25 both palaces were breached and approximately two thousand eunuchs were killed. Zhang Rang had previously fled with Emperor Shao ( r.  189 AD ) and his brother Liu Xie—the future Emperor Xian of Han ( r.  189–220 AD ). While being pursued by

6741-427: The family inheritance. His brothers Yuan Shang and Yuan Xi were killed in 207 AD by Gongsun Kang ( d.  221 AD ), who sent their heads to Cao Cao. After Cao's defeat at the naval Battle of Red Cliffs in 208 AD, China was divided into three spheres of influence, with Cao Cao dominating the north, Sun Quan (182–252 AD) dominating the south, and Liu Bei (161–223 AD) dominating

6848-435: The first group marked a district transport centre, the second group represented the order of post offices on the collection route. In the first group, the first digit corresponds partly with the region, the second digit meant a collection transport node (sběrný přepravní uzel, SPU) and the third digit a "district transport node" (okresní přepravní uzel). However, processing was later centralized and mechanized while codes remained

6955-465: The following letters only: A, C, D, E, F, H, K, N, P, R, T, V, W, X, Y. This serves to avoid confusion in OCR, and to avoid accidental double-entendres by avoiding the creation of word lookalikes, as Eircode's last four characters are random. Most of the postal code systems are numeric; only a few are alphanumeric (i.e., use both letters and digits). Alphanumeric systems can, given the same number of characters, encode many more locations. For example, while

7062-601: The frontier were soldiers. On occasion, the court forcibly moved peasant farmers to new frontier settlements, along with government-owned slaves and convicts who performed hard labour. The court also encouraged commoners, such as farmers, merchants, landowners, and hired labourers, to voluntarily migrate to the frontier. Even before the Han's expansion into Central Asia, diplomat Zhang Qian 's travels from 139 to 125 BC had established Chinese contacts with many surrounding civilizations. Zhang encountered Dayuan ( Fergana ), Kangju ( Sogdiana ), and Daxia ( Bactria , formerly

7169-441: The idea of extending the postal district or zone numbering plans beyond large cities to cover even small towns and rural locales had started. These developed into postal codes as they are defined today. The name of US postal codes, "ZIP Codes", reflects this evolutionary growth from a zone plan to a zone improvement plan, "ZIP". Modern postal codes were first introduced in the Ukrainian Soviet Socialist Republic in December 1932, but

7276-412: The letters 'F', 'I', 'O', 'Q', 'U' and 'Y' for technical reasons. But as almost all existing combinations are now used, these letters were allowed for new locations starting 2005. The letter combinations "SS" ( Schutzstaffel ), "SD" ( Sicherheitsdienst ), and "SA" ( Sturmabteilung ) are not used, due to links with the Nazi occupation in World War II . Postal codes in Canada do not include

7383-414: The letters D, F, I, O, Q, or U, as the optical character recognition (OCR) equipment used in automated sorting could easily confuse them with other letters and digits. The letters W and Z are used, but are not currently used as the first letter. The Canadian Postal Codes use alternate letters and numbers (with a space after the third character) in this format: A9A 9A9 In Ireland, the eircode system uses

7490-587: The name of the city or town. When it follows the city, it may be on the same line or on a new line. In Belarus , Kyrgyzstan , Russia and Turkmenistan , it is written at the beginning of an address. In Japan , it is written at the start of the address when written in Japanese, but at the end when the address is written in the Latin alphabet. Postal codes are usually assigned to geographical areas. Sometimes codes are assigned to individual addresses or to institutions that receive large volumes of mail, e.g. government agencies or large commercial companies. One example

7597-497: The nearest post office, as well as pick up their mail from the way office. In parts of Europe, special postal censorship offices existed to intercept and censor mail. In France, such offices were known as cabinets noirs . In many jurisdictions, mailboxes and post office boxes have long been in widespread use for drop-off and pickup (respectively) of mail and small packages outside post offices or when offices are closed. Germany's national postage system Deutsche Post introduced

7704-522: The new postal code system launched in 2015, known as Eircode provides a unique 7-character alphanumerical code for each individual address. The first three digits are the routing key, which is a postal district and the last four characters are a unique identifier that relates to an individual address (business, house or apartment). A fully developed API is also available for integrating the Eircode database into business databases and logistics systems. With

7811-411: The nobility, Wang Mang claimed on 10 January that the divine Mandate of Heaven called for the end of the Han dynasty and the beginning of his own: the Xin dynasty (9–23 AD). Wang Mang initiated a series of major reforms that were ultimately unsuccessful. These reforms included outlawing slavery, nationalizing and equally distributing land between households, and introducing new currencies,

7918-600: The number of a neighbouring department. The first digit of the postal codes in the United States comprises discrete states. From the first three digits one can infer the state, with a few exceptions where an area is served by a central office in an adjacent state. Similarly, in Canada , the first letter indicates the province or territory, although the provinces of Quebec and Ontario are divided into several lettered sub-regions (e.g. H for Montreal and Laval ), and

8025-462: The number used in ISO 3166-2:VN . In France the numeric code for the departments is used as the first two digits of the postal code, except for the two departments in Corsica that have codes 2A and 2B and use 20 as postal code. Furthermore, the codes are only the codes for the department in charge of delivery of the post, so it can be that a location in one department has a postal code starting with

8132-602: The other providing sturdy oxen for bulk shipments. The Byzantine historian Procopius , though not unbiased, records the Cursus Publicus system remained largely intact until it was dismantled in the Byzantine empire by the emperor Justinian in the 6th century. The Princely House of Thurn and Taxis family initiated regular mail service from Brussels in the 16th century , directing the Imperial Post of

8239-687: The other to the south of the Shandong Peninsula , though Han engineers managed to dam the southern branch by 70 AD. The flood dislodged thousands of peasant farmers, many of whom joined roving bandit and rebel groups such as the Red Eyebrows to survive. Wang Mang's armies were incapable of quelling these enlarged rebel groups. Eventually, an insurgent mob forced their way into the Weiyang Palace and killed Wang Mang. The Gengshi Emperor ( r.  23–25 AD ),

8346-560: The other. When the retainers gradually deserted Dou Wu, he was forced to commit suicide. Under Emperor Ling ( r.  168–189 AD ) the eunuchs had the partisan prohibitions renewed and expanded, while also auctioning off top government offices. Many affairs of state were entrusted to the eunuchs Zhao Zhong ( d.  189 AD ) and Zhang Rang ( d.  189 AD ) while Emperor Ling spent much of his time roleplaying with concubines and participating in military parades. The Partisan Prohibitions were repealed during

8453-1135: The practice. In the Persian Empire , a Chapar Khaneh system existed along the Royal Road . Similar postage systems were established in India and China by the Mauryan and Han dynasties in the 2nd century BCE. The Roman historian Suetonius credited Augustus with regularising the Roman transportation and courier network, the Cursus Publicus . Local officials were obliged to provide couriers who would be responsible for their message's entire course. Locally maintained post houses ( Latin : stationes ) privately owned rest houses ( Latin : mansiones ) and were obliged or honored to care for couriers along their way. The Roman emperor Diocletian later established two parallel systems: one providing fresh horses or mules for urgent correspondence and

8560-603: The remainder of Western and Eastern Han. To the north of China proper , the nomadic Xiongnu chieftain Modu Chanyu ( r.  209–174 BC ) conquered various tribes inhabiting the eastern portion of the Eurasian Steppe . By the end of his reign, he controlled the Inner Asian regions of Manchuria , Mongolia , and the Tarim Basin , subjugating over twenty states east of Samarkand . Emperor Gaozu

8667-616: The salt and iron monopolies were eventually abolished in the early Eastern Han. The issuing of coinage remained a central government monopoly throughout the rest of the Han dynasty. The government monopolies were eventually repealed when a political faction known as the Reformists gained greater influence in the court. The Reformists opposed the Modernist faction that had dominated court politics in Emperor Wu's reign and during

8774-533: The same. After separation, Slovakia and the Czech Republic kept the system. Codes with an initial digit of 1, 2, 3, 4, 5, 6, or 7 are used in the Czech Republic, while codes with an initial digit of 8, 9, or 0 are used in Slovakia A code corresponds to a local postal office. However, some larger companies or organizations have their own post codes. In 2004–2006, there were some efforts in Slovakia to reform

8881-479: The south , annexing Nanyue in 111 BC and Dian in 109 BC . He further expanded Han territory into the northern Korean Peninsula , where Han forces conquered Gojoseon and established the Xuantu and Lelang commanderies in 108 BC. After 92 AD, palace eunuchs increasingly involved themselves in the dynasty's court politics, engaging in violent power struggles between various consort clans of

8988-479: The subsequent regency of Huo Guang ( d.  68 BC ). The Modernists argued for an aggressive and expansionary foreign policy supported by revenues from heavy government intervention in the private economy. The Reformists, however, overturned these policies, favouring a cautious, non-expansionary approach to foreign policy, frugal budget reform, and lower tax-rates imposed on private entrepreneurs. Wang Zhengjun (71 BC – 13 AD)

9095-480: The system was abandoned in 1939. The next country to introduce postal codes was Germany in 1941, followed by Singapore in 1950, Argentina in 1958, the United States in 1963 and Switzerland in 1964. The United Kingdom began introducing its current system in Norwich in 1959, but it was not used nationwide until 1974. The characters used in postal codes are: Postal codes in the Netherlands originally did not use

9202-553: The system, to get separate post codes for every district of single postmen, but the change was not realized. Postal codes are known as Postal Index Numbers (PINs; sometimes as PIN codes) in India. The PIN system was introduced on 15 August 1972 by India Post. India uses a unique six-digit code as a geographical number to identify locations in India. The format of the PIN is ZSDPPP defined as follows: The first digit represents nine total zones: eight regional and one functional. In Ireland,

9309-438: The term "post house", fell from use as horse and coach services were replaced by railways , aircraft , and automobiles . The term "post office" usually refers to government postal facilities providing customer service. " General Post Office " is sometimes used for the national headquarters of a postal service, even if the building does not provide customer service. A postal facility that is used exclusively for processing mail

9416-461: The title of emperor; when these warlords were defeated, China reunified under the Han. The period between the foundation of the Han dynasty and Wang Mang's reign is known as the Western Han ( 西漢 ; 西汉 ; Xīhàn ) or Former Han ( 前漢 ; 前汉 ; Qiánhàn ) (206 BC – 9 AD). During this period the capital was at Chang'an (modern Xi'an ). From the reign of Guangwu

9523-472: The treaty and periodically raided Han territories south of the Great Wall for additional goods. In a court conference assembled by Emperor Wu ( r.  141–87 BC ) in 135 BC, the majority consensus of the ministers was to retain the heqin agreement. Emperor Wu accepted this, despite continuing Xiongnu raids. However, a court conference the following year convinced the majority that

9630-400: The war with Chu, Emperor Gaozu enfeoffed some of them as kings. By 196, the Han court had replaced all of these kings with royal Liu family members, with the lone exception of Changsha . The loyalty of non-relatives to the emperor was questioned, and after several insurrections by Han kings—with the largest being the Rebellion of the Seven States in 154—the imperial court began enacting

9737-487: The west. Cao Cao died in March 220 AD. By December his son Cao Pi (187–226 AD) had Emperor Xian relinquish the throne to him and is known posthumously as Emperor Wen of Wei . This formally ended the Han dynasty and initiated an age of conflict between the Three Kingdoms : Cao Wei , Eastern Wu , and Shu Han . In the hierarchical social order, the emperor was at the apex of Han society and government. However,

9844-411: The widespread rebellion against Wang Mang , the state of Goguryeo was free to raid Han's Korean commanderies ; Han did not reaffirm its control over the region until AD 30. The Trưng Sisters of Vietnam rebelled against Han in AD 40. Their rebellion was crushed by Han general Ma Yuan ( d.  AD 49 ) in a campaign from AD 42 to 43. Wang Mang renewed hostilities against

9951-586: The world as a postcode , post code , PIN or ZIP Code ) is a series of letters or digits or both, sometimes including spaces or punctuation, included in a postal address for the purpose of sorting mail . As of August 2021, the Universal Postal Union lists 160 countries which require the use of a postal code. Although postal codes are usually assigned to geographical areas, special codes are sometimes assigned to individual addresses or to institutions that receive large volumes of mail, such as government agencies and large commercial companies. One example

10058-438: Was appointed regent as Marshall of State on 16 August under Emperor Ping ( r.   1 BC – 6 AD). When Ping died on 3 February 6 AD, Ruzi Ying ( d.  25 AD ) was chosen as the heir and Wang Mang was appointed to serve as acting emperor for the child. Wang promised to relinquish his control to Liu Ying once he came of age. Despite this promise, and against protest and revolts from

10165-504: Was at the pinnacle of Han society and culture . He presided over the Han government but shared power with both the nobility and the appointed ministers who came largely from the scholarly gentry class . The Han Empire was divided into areas directly controlled by the central government called commanderies , as well as a number of semi-autonomous kingdoms . These kingdoms gradually lost all vestiges of their independence, particularly following

10272-903: Was brought into the Han realm with the conquest of the Dian Kingdom in 109 BC, followed by parts of the Korean Peninsula with the Han conquest of Gojoseon and establishment of the Xuantu and Lelang commanderies in 108 BC. The first nationwide census in Chinese history was taken in 2 AD; the Han's total population was registered as comprising 57,671,400 individuals across 12,366,470 households. To pay for his military campaigns and colonial expansion, Emperor Wu nationalised several private industries. He created central government monopolies administered largely by former merchants . These monopolies included salt, iron, and liquor production, as well as bronze coinage . The liquor monopoly lasted only from 98 to 81 BC, and

10379-552: Was chosen as the new capital of the reunified empire under Han. At the beginning of the Western Han ( traditional Chinese : 西漢 ; simplified Chinese : 西汉 ; pinyin : Xīhàn ), also known as the Former Han ( 前漢 ; 前汉 ; Qiánhàn ), thirteen centrally-controlled commanderies —including the capital region—existed in the western third of the empire, while the eastern two-thirds were divided into ten semi-autonomous kingdoms . To placate his prominent commanders from

10486-490: Was convinced by the accusations of the eunuchs Li Run ( 李閏 ) and Jiang Jing ( 江京 ) that Deng and her family had planned to depose him. An dismissed Deng's clan members from office, exiled them, and forced many to commit suicide. After An's death, his wife, Empress Dowager Yan ( d.  126 AD ) placed the child Marquess of Beixiang on the throne in an attempt to retain power within her family. However, palace eunuch Sun Cheng ( d.  132 AD ) masterminded

10593-487: Was first empress, then empress dowager , and finally grand empress dowager during the reigns of the Emperors Yuan ( r.  49–33 BC ), Cheng ( r.  33–7 BC ), and Ai ( r.  7–1 BC ), respectively. During this time, a succession of her male relatives held the title of regent. Following the death of Ai, Wang Zhengjun's nephew Wang Mang (45 BC – 23 AD)

10700-446: Was in revenge for Dou's purging of the clan of his natural mother— Consort Liang —and then concealing her identity from him. After Emperor He's death, his wife Empress Deng Sui ( d.  121 AD ) managed state affairs as the regent empress dowager during a turbulent financial crisis and widespread Qiang rebellion that lasted from 107 to 118 AD. When Empress Dowager Deng died, Emperor An ( r.  106–125 AD )

10807-650: Was killed by allies of the Xiongnu in Karasahr and Kucha , the garrison at Hami was withdrawn. At the Battle of Ikh Bayan in AD 89, Dou Xian ( d.  AD 92 ) defeated the Northern Xiongnu chanyu who then retreated into the Altai Mountains . After the Northern Xiongnu fled into the Ili River valley in AD 91, the nomadic Xianbei occupied the area from the borders of

10914-664: Was near the commandery of Rinan where Chinese sources claim the Romans first landed, as well as embassies from Tianzhu in northern India in 159 and 161. Óc Eo is also thought to be the port city " Cattigara " described by Ptolemy in his Geography ( c.  150 AD ) as lying east of the Golden Chersonese ( Malay Peninsula ) along the Magnus Sinus (i.e. the Gulf of Thailand and South China Sea ), where

11021-450: Was persuaded by Cao Cao (155–220 AD), then Governor of Yan Province in modern western Shandong and eastern Henan , to move the capital to Xuchang in 196 AD. Yuan Shao challenged Cao Cao for control over the emperor. Yuan's power was greatly diminished after Cao defeated him at the Battle of Guandu in 200 AD. After Yuan died, Cao killed Yuan Shao's son Yuan Tan (173–205 AD), who had fought with his brothers over

11128-595: Was reinstated when it was bestowed on Ban Chao. Foreign travellers to the Eastern Han empire included Buddhist monks who translated works into Chinese , such as An Shigao from Parthia, and Lokaksema from Kushan-era Gandhara . In addition to tributary relations with the Kushans, the Han empire received gifts from sovereigns in the Parthian Empire , as well as from kings in modern Burma and Japan . He also initiated an unsuccessful mission to Rome in AD 97 with Gan Ying as emissary. A Roman embassy of Emperor Marcus Aurelius ( r.  161–180 AD )

11235-483: Was split into eight numbered districts in 1867/68. By World War I , such postal district or zone numbers also existed in various large European cities. They existed in the United States at least as late as the 1920s, possibly implemented at the local post office level only (for example, instances of "Boston 9, Mass" in 1920 are attested ) although they were evidently not used throughout all major US cities (implemented USPOD -wide) until World War II . By 1930 or earlier,

11342-413: Was then forced to commit suicide. Students from the imperial university organized a widespread student protest against the eunuchs of Emperor Huan's court. Huan further alienated the bureaucracy when he initiated grandiose construction projects and hosted thousands of concubines in his harem at a time of economic crisis. Palace eunuchs imprisoned the official Li Ying ( 李膺 ) and his associates from

11449-399: Was troubled about the abundant Han-manufactured iron weapons traded to the Xiongnu along the northern borders, and he established a trade embargo against the group. In retaliation, the Xiongnu invaded what is now Shanxi , where they defeated the Han forces at Baideng in 200 BC. After negotiations, the heqin agreement in 198 BC nominally held the leaders of the Xiongnu and

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