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87-727: Alexander Graham Bell ( / ˈ ɡ r eɪ . ə m / , born Alexander Bell ; March 3, 1847 – August 2, 1922) was a Scottish-born Canadian-American inventor, scientist, and engineer who is credited with patenting the first practical telephone . He also co-founded the American Telephone and Telegraph Company (AT&T) in 1885. Bell's father , grandfather, and brother had all been associated with work on elocution and speech, and both his mother and wife were deaf, profoundly influencing Bell's life's work. His research on hearing and speech further led him to experiment with hearing devices, which eventually culminated in his being awarded

174-489: A Baptist minister and family friend. The Bells soon purchased a farm of 10.5 acres (4.2 ha) at Tutelo Heights (now called Tutela Heights), near Brantford , Ontario. The property consisted of an orchard, large farmhouse, stable, pigsty, hen-house, and a carriage house , which bordered the Grand River . At the homestead, Bell set up a workshop in the converted carriage house near what he called his "dreaming place",

261-540: A patent application for it. Since he had agreed to share U.S. profits with his investors Gardiner Hubbard and Thomas Sanders, Bell requested that an associate in Ontario, George Brown , attempt to patent it in Britain, instructing his lawyers to apply for a patent in the U.S. only after they received word from Britain (Britain issued patents only for discoveries not previously patented elsewhere). Meanwhile, Elisha Gray

348-484: A "talking dog". These initial forays into experimentation with sound led Bell to undertake his first serious work on the transmission of sound, using tuning forks to explore resonance . At age 19, Bell wrote a report on his work and sent it to philologist Alexander Ellis , a colleague of his father. Ellis immediately wrote back indicating that the experiments were similar to existing work in Germany, and also lent Bell

435-601: A 3,400-mile wire between New York and San Francisco. Dr. Bell, the veteran inventor of the telephone, was in New York, and Mr. Watson, his former associate, was on the other side of the continent. As is sometimes common in scientific discoveries, simultaneous developments occurred, as evidenced by a number of inventors who were at work on the telephone. Over 18 years, the Bell Telephone Company faced 587 court challenges to its patents, including five that went to

522-478: A big success. While working that summer in Brantford, Bell experimented with a " phonautograph ", a pen-like machine that could draw shapes of sound waves on smoked glass by tracing their vibrations. Bell thought it might be possible to generate undulating electrical currents that corresponded to sound waves. He also thought that multiple metal reeds tuned to different frequencies like a harp would be able to convert

609-542: A bill in 2009, making June 24 Canadian American Day in the state of Connecticut . The bill allows state officials to hold ceremonies at the capitol and other places each year to honor Americans of Canadian ancestry. As a consequence of Article 3 of the Jay Treaty of 1794, official First Nations status, or in the United States, Native American status, also confers the right to live and work on either side of

696-455: A copy of Hermann von Helmholtz 's work, The Sensations of Tone as a Physiological Basis for the Theory of Music . Dismayed to find that groundbreaking work had already been undertaken by Helmholtz, who had conveyed vowel sounds by means of a similar tuning fork "contraption", Bell pored over the book. Working from his own erroneous mistranslation of a French edition, Bell fortuitously then made

783-411: A cup of mercury, not water. He had filed the mercury application at the patent office on February 25, 1875, long before Gray described the water device. In addition, Gray abandoned his caveat, and because he did not contest Bell's priority, the examiner approved Bell's patent on March 3, 1876. Gray had reinvented the variable resistance telephone, but Bell was the first to write down the idea and test it in

870-534: A deduction that would underpin all his future work on transmitting sound, reporting: "Without knowing much about the subject, it seemed to me that if vowel sounds could be produced by electrical means, so could consonants, so could articulate speech." He also later remarked: "I thought that Helmholtz had done it ... and that my failure was due only to my ignorance of electricity. It was a valuable blunder ... If I had been able to read German in those days, I might never have commenced my experiments!" In 1865, when

957-633: A deep interest in the emerging science of heredity . His work in this area has been called "the soundest, and most useful study of human heredity proposed in nineteenth-century America... Bell's most notable contribution to basic science, as distinct from invention." Bell was born in Edinburgh , Scotland , on March 3, 1847. The family home was at South Charlotte Street, and has a stone inscription marking it as Bell's birthplace. He had two brothers: Melville James Bell (1845–1870) and Edward Charles Bell (1848–1867), both of whom died of tuberculosis . His father

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1044-616: A derogatory term if used outside its historical context; the preferred term today is simply deaf . In 19th-century British English mute and dumb meant 'non-speaking', and were not pejorative terms. For example, in 1889 Queen Victoria instigated the Royal Commission on The Blind, the Deaf and Dumb etc. in the United Kingdom . The intention was to examine contemporary education and employment of blind or deaf people, with

1131-460: A family friend. To close relatives and friends he remained "Aleck". Bell and his siblings attended a Presbyterian Church in their youth. As a child, Bell displayed a curiosity about his world; he gathered botanical specimens and ran experiments at an early age. His best friend was Ben Herdman, a neighbor whose family operated a flour mill. At the age of 12, Bell built a homemade device that combined rotating paddles with sets of nail brushes, creating

1218-435: A far-reaching decision to concentrate on his experiments in sound. Giving up his lucrative private Boston practice, Bell retained only two students, six-year-old "Georgie" Sanders, deaf from birth, and 15-year-old Mabel Hubbard . Each played an important role in the next developments. Georgie's father, Thomas Sanders, a wealthy businessman, offered Bell a place to stay in nearby Salem with Georgie's grandmother, complete with

1305-544: A global telephone operation. The strain put on Bell by his constant appearances in court, necessitated by the legal battles, eventually resulted in his resignation from the company. Canadian Americans The term Canadian can mean a nationality or an ethnicity . Canadians are considered North Americans due their residing in the North American continent. English-speaking Canadian immigrants easily integrate and assimilate into northern and western U.S. states as

1392-634: A large hollow nestled in trees at the back of the property above the river. Despite his frail condition upon arriving in Canada, Bell found the climate and environs to his liking and rapidly improved. He continued his interest in the study of the human voice, and when he discovered the Six Nations Reserve across the river at Onondaga , learned the Mohawk language and translated its unwritten vocabulary into Visible Speech symbols. For his work, Bell

1479-539: A patent on an invention, and starting a family, Bell continued as a teacher. In May 1870, Melville died from complications of tuberculosis, causing a family crisis. His father had also experienced a debilitating illness earlier in life and been restored to health by convalescence in Newfoundland . Bell's parents embarked upon a long-planned move when they realized that their remaining son was also sickly. Acting decisively, Alexander Melville Bell asked Bell to arrange for

1566-462: A result of many cultural similarities, and in the similar accent in spoken English. French-speaking Canadians , because of language and culture, tend to take longer to assimilate. However, by the 3rd generation, they are often fully culturally assimilated, and the Canadian identity is more or less folklore. This took place, even though half of the population of the province of Quebec emigrated to

1653-434: A room to "experiment". Although the offer was made by Georgie's mother and followed the year-long arrangement in 1872 where her son and his nurse had moved to quarters next to Bell's boarding house, it was clear that Mr. Sanders backed the proposal. The arrangement was for teacher and student to continue their work together, with free room and board thrown in. Mabel was a bright, attractive girl ten years Bell's junior who became

1740-557: A simple dehusking machine that was put into operation at the mill and used steadily for a number of years. In return, Ben's father John Herdman gave both boys the run of a small workshop in which to "invent". From his early years, Bell showed a sensitive nature and a talent for art, poetry, and music that his mother encouraged. With no formal training, he mastered the piano and became the family's pianist. Though normally quiet and introspective, he reveled in mimicry and "voice tricks" akin to ventriloquism that entertained family guests. Bell

1827-592: A student in Latin and Greek, he instructed classes himself in return for board and £10 per session. The next year, he attended the University of Edinburgh , joining his brother Melville, who had enrolled there the previous year. In 1868, not long before he departed for Canada with his family, Bell completed his matriculation exams and was accepted for admission to University College London . Bell's father encouraged his interest in speech and, in 1863, took his sons to see

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1914-543: A teaching practice and in 1871, he accompanied his father to Montreal, where Melville was offered a position to teach his System of Visible Speech. Bell's father was invited by Sarah Fuller , principal of the Boston School for Deaf Mutes (later to become the public Horace Mann School for the Deaf ) to introduce the Visible Speech System by providing training for Fuller's instructors, but he declined

2001-571: A telephone. The patent examiner , Zenas Fisk Wilber, later stated in an affidavit that he was an alcoholic who was much in debt to Bell's lawyer, Marcellus Bailey , with whom he had served in the Civil War. He said he had shown Bailey Gray's patent caveat. Wilber also said (after Bell arrived in Washington D.C. from Boston) that he showed Bell Gray's caveat and that Bell paid him $ 100 (equivalent to $ 2,800 in 2023). Bell said they discussed

2088-516: A unique automaton developed by Sir Charles Wheatstone based on the earlier work of Baron Wolfgang von Kempelen . The rudimentary "mechanical man" simulated a human voice. Bell was fascinated by the machine, and after he obtained a copy of von Kempelen's book, published in German, and had laboriously translated it, he and Melville built their own automaton head. Their father, highly interested in their project, offered to pay for any supplies and spurred

2175-608: A view to improving conditions for them. The Oxford English Dictionary states that the North American pejorative usage of the word to imply stupidity was first noted in the UK in 1928. According to the OED, deaf-mute was coined in the early 19th century as a medical term for an inability to speak as a consequence of deafness. There is no mention of offensiveness of this term in the UK. The primary definition of dumb in Webster's Dictionary

2262-474: A working model of his telephone. On August 3, 1876, from the telegraph office in Brantford, Bell sent a telegram to the village of Mount Pleasant four miles (six kilometres) away, indicating that he was ready. He made a telephone call via telegraph wires and faint voices were heard replying. The following night, he amazed guests as well as his family with a call between the Bell Homestead and the office of

2349-629: A young child, Bell, like his brothers, was schooled at home by his father. At an early age, he was enrolled at the Royal High School , Edinburgh; he left at age 15, having completed only the first four forms. His school record was undistinguished, marked by absenteeism and lackluster grades. His main interest remained in the sciences, especially biology, while he treated other school subjects with indifference, to his father's dismay. Upon leaving school, Bell traveled to London to live with his grandfather, Alexander Bell, on Harrington Square . During

2436-519: Is "lacking intelligence" or "stupid". Its second definition of the word is "lacking the ability to speak ... now often offensive". Webster's definition of "mute", on the other hand, gives the adjectival meaning as "unable to speak", whereas one of its usages as a noun is "a person who cannot speak ... sometimes offensive". In informal American English the term dumb is sometimes used to refer to other hearing people in jest, to chide, or to invoke an image of someone who refuses to employ common sense or who

2523-448: Is a term which was used historically to identify a person who was either deaf and used sign language or both deaf and could not speak . The term continues to be used to refer to deaf people who cannot speak an oral language or have some degree of speaking ability, but choose not to speak because of the negative or unwanted attention atypical voices sometimes attract. Such people communicate using sign language . Some consider it to be

2610-473: Is unreliable. In the past deaf-mute was used to describe deaf people who used sign language, but in modern times, the term is frequently viewed today as offensive and inaccurate. From antiquity (as noted in the Code of Hammurabi ) until recent times, the terms deaf-mute and deaf and dumb were sometimes considered analogous to stupid by some hearing people. The simple identity of deaf has been embraced by

2697-659: Is used in The Catcher in the Rye to indicate someone who does not speak his mind, and hears nothing, in effect becoming isolated from the world. Chief Bromden, in One Flew Over the Cuckoo's Nest , is believed by all to be deaf and mute, but in fact he can hear and speak; he does not let anyone know this because, as he grew up, he was not spoken to (making him "deaf") and ignored (making him "mute"). The character Singer in

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2784-672: The Boston University School of Oratory. During this period, he alternated between Boston and Brantford, spending summers in his Canadian home. At Boston University, Bell was "swept up" by the excitement engendered by the many scientists and inventors living in the city. He continued his research in sound and endeavored to find a way to transmit musical notes and articulate speech, but although absorbed by his experiments, he found it difficult to devote enough time to experimentation. With days and evenings occupied by his teaching and private classes, Bell began to stay awake late into

2871-429: The U.S. House of Representatives stated that Meucci's "work in the invention of the telephone should be acknowledged". This did not put an end to the still contentious issue. Some modern scholars do not agree that Bell's work on the telephone was influenced by Meucci's inventions. The value of Bell's patent was acknowledged throughout the world, and patent applications were made in most major countries. When Bell delayed

2958-606: The U.S. Supreme Court , but none was successful in establishing priority over Bell's original patent, and the Bell Telephone Company never lost a case that had proceeded to a final trial stage. Bell's laboratory notes and family letters were the key to establishing a long lineage to his experiments. The Bell company lawyers successfully fought off myriad lawsuits generated initially around the challenges by Elisha Gray and Amos Dolbear . In personal correspondence to Bell, both Gray and Dolbear had acknowledged his prior work, which considerably weakened their later claims. On January 13, 1887,

3045-488: The community of signing deaf people since the foundations of public deaf education in the 18th century and remains the preferred term of reference or identity for many years. Within the deaf community there are some who prefer the term Deaf (upper-case D) to deaf (lower-case) as a description of their status and identity. Classification as a deaf-mute has a particular importance in Jewish law . Because historically it

3132-594: The "world's first long-distance call". It proved that the telephone could work over long distances, at least as a one-way call. The first two-way (reciprocal) conversation over a line occurred between Cambridge and Boston (roughly 2.5 miles) on October 9, 1876. During that conversation, Bell was on Kilby Street in Boston and Watson was at the offices of the Walworth Manufacturing Company. Bell and his partners, Hubbard and Sanders, offered to sell

3219-571: The 15th century to the end of the Ottoman Empire . Due to their nature, they were often entrusted with confidential and delicate missions, including executions. Stephen King's novel The Stand features a main character named Nick Andros who is referred to as "deaf-mute." Though deaf people almost always have a voice, King interpreted the term literally and made Nick unable to vocalize. However, he could read lips and make himself clearly understood by pantomiming and in writing. The phrase

3306-550: The Bell family moved to London, Bell returned to Weston House as an assistant master and, in his spare hours, continued experiments on sound using a minimum of laboratory equipment. Bell concentrated on experimenting with electricity to convey sound and later installed a telegraph wire from his room in Somerset College to that of a friend. Throughout late 1867, his health faltered mainly through exhaustion. His brother Edward

3393-676: The Deaf (United States) , but in his memoir Memoir upon the Formation of a Deaf Variety of the Human Race , he observed that if deaf people tended to marry other deaf people, this could result in the emergence of a "deaf race". Ultimately, in 1880, the Second International Congress on Education of the Deaf passed a resolution mandating the teaching of oral communication and banning signing in schools. In 1872, Bell became professor of Vocal Physiology and Elocution at

3480-503: The Deaf for a recommendation. Teaching his father's system, in October 1872, Alexander Bell opened his "School of Vocal Physiology and Mechanics of Speech" in Boston, which attracted a large number of deaf pupils, with his first class numbering 30 students. While he was working as a private tutor, one of his pupils was Helen Keller , who came to him as a young child unable to see, hear, or speak. She later said that Bell dedicated his life to

3567-498: The Dominion Telegraph Company in Brantford along an improvised wire strung up along telegraph lines and fences, and laid through a tunnel. This time, guests at the household distinctly heard people in Brantford reading and singing. The third test, on August 10, 1876, was made via the telegraph line between Brantford and Paris, Ontario, eight miles (thirteen kilometres) away. This test is said by many sources to be

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3654-556: The German patent application, the electrical firm Siemens & Halske set up a rival manufacturer of Bell telephones under its own patent. Siemens produced near-identical copies of the Bell telephone without having to pay royalties. The establishment of the International Bell Telephone Company in Brussels, Belgium, in 1880, as well as a series of agreements in other countries eventually consolidated

3741-474: The U.S. government moved to annul the patent issued to Bell on the grounds of fraud and misrepresentation. After a series of decisions and reversals, the Bell company won a decision in the Supreme Court, though a couple of the original claims from the lower court cases were left undecided. By the time the trial had wound its way through nine years of legal battles, the U.S. prosecuting attorney had died and

3828-460: The US between 1840 and 1930. Many New England cities formed ' Little Canadas ', but many of these have gradually disappeared. This cultural "invisibility" within the larger US population is seen as creating stronger affinity among Canadians living in the US than might otherwise exist. According to US Census estimates, the number of Canadian residents was around 640,000 in 2000. Some sources have cited

3915-659: The United States alone. It explains methods to instruct deaf-mutes (as they were then known) to articulate words and read other people's lip movements to decipher meaning. Bell's father taught him and his brothers not only to write Visible Speech but to identify any symbol and its accompanying sound. Bell became so proficient that he became a part of his father's public demonstrations and astounded audiences with his abilities. He could decipher Visible Speech representing virtually every language, including Latin , Scottish Gaelic , and even Sanskrit , accurately reciting written tracts without any prior knowledge of their pronunciation. As

4002-423: The ability to create a working model of his ideas. But a chance meeting in 1874 between Bell and Thomas A. Watson , an experienced electrical designer and mechanic at the electrical machine shop of Charles Williams, changed that. With financial support from Sanders and Hubbard, Bell hired Watson as his assistant, and the two experimented with acoustic telegraphy . On June 2, 1875, Watson accidentally plucked one of

4089-660: The border. Unlike the U.S., Canada has not codified the Jay Treaty. Canadian courts readily reject the Jay Treaty free passage of goods right. Some institutions in the United States focus on Canadian-American studies, including the Canadian-American Center at the University of Maine , the Center for Canadian American studies at Western Washington University , and the University at Buffalo Canadian-American Studies Committee. Deaf-mute Deaf-mute

4176-431: The boys on with the enticement of a "big prize" if they were successful. While his brother constructed the throat and larynx , Bell tackled the more difficult task of recreating a realistic skull. His efforts resulted in a remarkably lifelike head that could "speak", albeit only a few words. The boys would carefully adjust the "lips" and when a bellows forced air through the windpipe , a very recognizable Mama ensued, to

4263-527: The deaf could be taught to read lips and speak (known as oralism ), enabling their integration with wider society. Members of the Deaf community have criticized Bell for supporting ideas that could cause the closure of dozens of deaf schools, and what some consider eugenicist ideas. Bell did not support a ban on deaf people marrying each other, an idea articulated by the National Association of

4350-558: The degree examinations, devoting his spare time to studying. Helping his father in Visible Speech demonstrations and lectures brought Bell to Susanna E. Hull's private school for the deaf in South Kensington , London. His first two pupils were deaf-mute girls who made remarkable progress under his tutelage. While Melville seemed to achieve success on many fronts, including opening his own elocution school, applying for

4437-535: The delight of neighbors who came to see the invention. Intrigued by the results of the automaton, Bell continued to experiment with a live subject, the family's Skye Terrier , Trouve. After he taught it to growl continuously, Bell would reach into its mouth and manipulate the dog's lips and vocal cords to produce a crude-sounding "Ow ah oo ga ma ma". With little convincing, visitors believed his dog could articulate "How are you, grandmama?" Indicative of his playful nature, his experiments convinced onlookers that they saw

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4524-450: The device to Queen Victoria , placing calls to Cowes, Southampton, and London. These were the first publicly witnessed long-distance telephone calls in the UK . The queen found the process "quite extraordinary" although the sound was "rather faint". She later asked to buy the equipment that was used, but Bell offered to make "a set of telephones" specifically for her. The Bell Telephone Company

4611-509: The director of the Smithsonian Institution , to ask his advice on the electrical multi-reed apparatus that Bell hoped would transmit the human voice by telegraph. Henry said Bell had "the germ of a great invention". When Bell said that he lacked the necessary knowledge, Henry replied, "Get it!" That declaration greatly encouraged Bell to keep trying, even though he had neither the equipment needed to continue his experiments nor

4698-505: The electromagnetic telephone and never used Gray's liquid transmitter in public demonstrations or commercial use. The examiner raised the question of priority for the variable resistance feature of the telephone before approving Bell's patent application. He told Bell that his claim for the variable resistance feature was also described in Gray's caveat. Bell pointed to a variable resistance device in his previous application in which he described

4785-596: The first U.S. patent for the telephone, on March 7, 1876. Bell considered his invention an intrusion on his real work as a scientist and refused to have a telephone in his study. Many other inventions marked Bell's later life, including groundbreaking work in optical telecommunications , hydrofoils , and aeronautics . Bell also had a strong influence on the National Geographic Society and its magazine while serving as its second president from 1898 to 1903. Beyond his work in engineering, Bell had

4872-416: The great cost of constructing new lines. When Bell mentioned to Gardiner Hubbard and Thomas Sanders that he was working on a method of sending multiple tones on a telegraph wire using a multi-reed device, the two began to financially support Bell's experiments. Patent matters were handled by Hubbard's patent attorney , Anthony Pollok . In March 1875, Bell and Pollok visited the scientist Joseph Henry , then

4959-431: The laboratory of American District Telegraph (ADT) of New York, which was incorporated as a subsidiary of Western Union in 1901. Meucci's work, like that of many other inventors of the period, was based on earlier acoustic principles and, despite evidence of earlier experiments, the final case involving Meucci was eventually dropped upon Meucci's death. But due to the efforts of Congressman Vito Fossella , on June 11, 2002,

5046-495: The liquid transmitter, Watson, listening at the receiving end in an adjoining room, heard the words clearly. Although Bell was, and still is, accused of stealing the telephone from Gray, Bell used Gray's water transmitter design only after Bell's patent had been granted, and only as a proof of concept scientific experiment, to prove to his own satisfaction that intelligible "articulate speech" (Bell's words) could be electrically transmitted. After March 1876, Bell focused on improving

5133-512: The merits . During a deposition filed for the 1887 trial, Italian inventor Antonio Meucci also claimed to have created the first working model of a telephone in Italy in 1834. In 1886, in the first of three cases in which he was involved, Meucci took the stand as a witness in hope of establishing his invention's priority. Meucci's testimony was disputed due to lack of material evidence for his inventions, as his working models were purportedly lost at

5220-413: The next day resumed work, drawing in his notebook a diagram similar to that in Gray's patent caveat. On March 10, Bell succeeded in getting his telephone to work, using a liquid transmitter similar to Gray's design. Vibration of the diaphragm caused a needle to vibrate in the water, varying the electrical resistance in the circuit. When Bell spoke the sentence "Mr. Watson—Come here—I want to see you" into

5307-431: The night, running experiment after experiment in rented facilities at his boarding house. Keeping "night owl" hours, he worried that his work would be discovered and took great pains to lock up his notebooks and laboratory equipment. Bell had a specially made table where he could place his notes and equipment inside a locking cover. His health deteriorated as he had severe headaches. Returning to Boston in fall 1873, Bell made

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5394-414: The novel The Heart Is a Lonely Hunter , written in 1940, is referred to as "deaf-mute" throughout. In the classic Zorro stories, television series, etc. Zorro's aid Bernardo, a mute, pretends that he can also not hear, in order to get information to aid his master in his fight for justice. In the early 87th Precinct novels written by Ed McBain , Teddy Carella, the wife of Detective Steve Carella,

5481-575: The number to possibly be over 1,000,000. This number, though, is far smaller than the number of Americans who can trace part or the whole of their ancestry to Canada. The percentage of these in the New England states is almost 25% of the total population. In some regions of the United States, especially New England or the Midwest , a Canadian American often means one whose ancestors came from Canada. The Connecticut State Senate unanimously passed

5568-477: The object of his affection. Having lost her hearing after a near-fatal bout of scarlet fever close to her fifth birthday, she had learned to read lips but her father, Gardiner Greene Hubbard, Bell's benefactor and personal friend, wanted her to work directly with her teacher. By 1874, Bell's initial work on the harmonic telegraph had entered a formative stage, with progress made both at his new Boston "laboratory" (a rented facility) and at his family home in Canada

5655-464: The patent only in general terms, although in a letter to Gray, Bell admitted that he learned some of the technical details. Bell denied in an affidavit that he ever gave Wilber any money. On March 10, 1876, Bell used "the instrument" in Boston to call Thomas Watson who was in another room but out of earshot. He said, "Mr. Watson, come here – I want to see you" and Watson soon appeared at his side. Continuing his experiments in Brantford, Bell brought home

5742-423: The patent outright to Western Union for $ 100,000, equal to $ 2,861,250 today, but it did not work (according to an apocryphal story, the president of Western Union balked, countering that the telephone was nothing but a toy). Two years later, he told colleagues that if he could get the patent for $ 25 million (equal to $ 789,310,345 today), he would consider it a bargain. By then, the Bell company no longer wanted to sell

5829-479: The patent. Bell's investors became millionaires while he fared well from residuals and at one point had assets of nearly $ 1 million. Bell began a series of public demonstrations and lectures to introduce the new invention to the scientific community as well as the general public. A short time later, his demonstration of an early telephone prototype at the 1876 Centennial Exposition in Philadelphia brought

5916-506: The penetration of that "inhuman silence which separates and estranges". In 1893, Keller performed the sod-breaking ceremony for the construction of Bell's new Volta Bureau , dedicated to "the increase and diffusion of knowledge relating to the deaf". Throughout his life, Bell sought to assimilate the deaf and hard of hearing with the hearing world. He encouraged speech therapy and lipreading over sign language. He outlined this in an 1898 paper detailing his belief that, with resources and effort,

6003-745: The post in favor of his son. Traveling to Boston in April 1871, Bell proved successful in training the school's instructors. He was asked to repeat the program at the American Asylum for Deaf-mutes in Hartford, Connecticut , and the Clarke School for the Deaf in Northampton, Massachusetts . Returning home to Brantford after six months abroad, Bell continued his experiments with his "harmonic telegraph". The basic concept behind his device

6090-450: The primacy of Bell's patent. Bell was in Boston on February 14 and did not arrive in Washington until February 26. On March 7, 1876, the U.S. Patent Office issued Bell patent 174,465. It covered "the method of, and apparatus for, transmitting vocal or other sounds telegraphically ... by causing electrical undulations, similar in form to the vibrations of the air accompanying the said vocal or other sound" Bell returned to Boston that day and

6177-621: The receiving telephone. Pedro II of Brazil was the first person to buy stock in the Bell Telephone Company. One of the first telephones in a private residence was installed in his palace in Petrópolis , his summer retreat forty miles (sixty-four kilometres) from Rio de Janeiro . In January 1915, Bell made the first ceremonial transcontinental telephone call . Calling from the AT&;T head office at 15 Dey Street in New York City, Bell

6264-410: The reeds and Bell, at the receiving end of the wire, heard the reed's overtones that would be necessary for transmitting speech. That demonstrated to Bell that only one reed or armature was necessary, not multiple reeds. This led to the "gallows" sound-powered telephone , which could transmit indistinct, voice-like sounds, but not clear speech. In 1875, Bell developed an acoustic telegraph and drew up

6351-502: The sale of all the family property, conclude all his brother's affairs (Bell took on his last student, curing a pronounced lisp), and join his father and mother in setting out for the " New World ". Reluctantly, Bell also had to conclude a relationship with Marie Eccleston, who, as he had surmised, was not prepared to leave England with him. In 1870, 23-year-old Bell traveled with his parents and his brother's widow, Caroline Margaret Ottaway, to Paris, Ontario , to stay with Thomas Henderson,

6438-519: The telephone to international attention. Influential visitors to the exhibition included Emperor Pedro II of Brazil . One of the judges at the Exhibition, Sir William Thomson (later Lord Kelvin), a renowned Scottish scientist, described the telephone as "the greatest by far of all the marvels of the electric telegraph". On January 14, 1878, at Osborne House , on the Isle of Wight , Bell demonstrated

6525-458: The two Bell patents (No. 174,465, dated March 7, 1876, and No. 186,787, dated January 30, 1877) were no longer in effect, although the presiding judges agreed to continue the proceedings due to the case's importance as a precedent . With a change in administration and charges of conflict of interest (on both sides) arising from the original trial, the U.S. attorney general dropped the lawsuit on November 30, 1897, leaving several issues undecided on

6612-435: The undulating currents back into sound. But he had no working model to demonstrate the feasibility of these ideas. In 1874, telegraph message traffic was rapidly expanding and, in the words of Western Union President William Orton , had become "the nervous system of commerce". Orton had contracted with inventors Thomas Edison and Elisha Gray to find a way to send multiple telegraph messages on each telegraph line to avoid

6699-485: The year he spent with his grandfather, a love of learning was born, with long hours spent in serious discussion and study. The elder Bell took great efforts to have his young pupil learn to speak clearly and with conviction, attributes he would need to become a teacher himself. At age 16, Bell secured a position as a "pupil-teacher" of elocution and music at Weston House Academy in Elgin, Moray , Scotland. Although enrolled as

6786-404: Was Alexander Melville Bell , a phonetician , and his mother was Eliza Grace Bell ( née Symonds). Born as just "Alexander Bell", at age 10 he made a plea to his father to have a middle name like his two brothers. For his 11th birthday, his father acquiesced and allowed him to adopt the name "Graham", chosen out of respect for Alexander Graham, a Canadian being treated by his father who had become

6873-492: Was also deeply affected by his mother's gradual deafness (she began to lose her hearing when he was 12), and learned a manual finger language so he could sit at her side and tap out silently the conversations swirling around the family parlor. He also developed a technique of speaking in clear, modulated tones directly into his mother's forehead, whereby she would hear him with reasonable clarity. Bell's preoccupation with his mother's deafness led him to study acoustics . His family

6960-401: Was also experimenting with acoustic telegraphy and thought of a way to transmit speech using a water transmitter. On February 14, 1876, Gray filed a caveat with the U.S. Patent Office for a telephone design that used a water transmitter. That same morning, Bell's lawyer filed Bell's application with the patent office. There is considerable debate about who arrived first and Gray later challenged

7047-430: Was awarded the title of Honorary Chief and participated in a ceremony where he donned a Mohawk headdress and danced traditional dances. After setting up his workshop, Bell continued experiments based on Helmholtz's work with electricity and sound. He also modified a melodeon (a type of pump organ) to transmit its music electrically over a distance. Once the family was settled, Bell and his father made plans to establish

7134-427: Was created in 1877, and by 1886, more than 150,000 people in the U.S. owned telephones. Bell Company engineers made numerous other improvements to the telephone, which emerged as one of the most successful products ever. In 1879, the company acquired Edison's patents for the carbon microphone from Western Union. This made the telephone practical for longer distances, and it was no longer necessary to shout to be heard at

7221-465: Was heard by Thomas Watson at 333 Grant Avenue in San Francisco. The New York Times reported: On October 9, 1876, Alexander Graham Bell and Thomas A. Watson talked by telephone to each other over a two-mile wire stretched between Cambridge and Boston. It was the first wire conversation ever held. Yesterday afternoon [on January 25, 1915], the same two men talked by telephone to each other over

7308-606: Was long associated with the teaching of elocution: his grandfather, Alexander Bell, in London, his uncle in Dublin , and his father, in Edinburgh, were all elocutionists. His father published a variety of works on the subject, several of which are still well known, especially The Standard Elocutionist (1860), which appeared in Edinburgh in 1868. The Standard Elocutionist appeared in 168 British editions and sold over 250,000 copies in

7395-474: Was similarly affected by tuberculosis . While Bell recovered (by then referring to himself in correspondence as "A. G. Bell") and served the next year as an instructor at Somerset College, Bath , England, his brother's condition deteriorated. Edward never recovered. Upon his brother's death, Bell returned home in 1867. Melville had married and moved out. With aspirations to obtain a degree at University College London , Bell considered his next years preparation for

7482-481: Was that messages could be sent through a single wire if each was transmitted at a different pitch, but work on both the transmitter and receiver was needed. Unsure of his future, he contemplated returning to London to complete his studies, but decided to return to Boston as a teacher. His father helped him set up his private practice by contacting Gardiner Greene Hubbard , the president of the Clarke School for

7569-545: Was thought impossible to teach or communicate with them, deaf-mutes were not moral agents , and therefore were unable to own real estate , act as witnesses , or be punished for any crime. However, today when techniques for educating deaf people are known, they are no longer classed as such. The Ottoman Sultans used people referred to as "congenital deaf-mutes" (called in Turkish dilsiz or bizeban , i.e. 'mute' or 'without tongue') in their own personal service from

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