Organized baseball is an outdated term that collectively describes what is now known as Major League Baseball (MLB) and its various affiliated minor leagues , under the authority of the Commissioner of Baseball . Historically, these leagues were bound by the National Association of Professional Baseball Leagues (NAPBL), an agreement signed in 1901 that is considered the first to formally establish Minor League Baseball . The agreement included provisions to respect the player reserve lists of clubs in each league.
99-759: From 1901 onward, organized baseball primarily consisted of two dominant "major" leagues, the National League and the American League , and the minor leagues governed by the rules of the National Association of Professional Baseball Leagues (NAPBL). Starting in 1947, the term also included several Caribbean winter leagues , such as the Cuban League , that affiliated themselves with the National League and American League via
198-688: A championship pennant. The first true minor league is traditionally considered to be the Northwestern League of 1883 to 1884. Unlike the earlier minor associations, it was conceived as a permanent organization. It also, along with the NL and the American Association (AA), was a party to the National Agreement of 1883 . Included in this was the agreement to respect the reserve lists of clubs in each league. Teams in
297-653: A condition of the sale of the Astros to Jim Crane in November 2011, the team agreed to move to the American League effective with the 2013 season. In 2023, National League teams played 46 regular season interleague games against all 15 American League teams, 23 at home and 23 on the road. As of the end of the 2024 season, the Dodgers have won the most NL pennants, with 25. Representing the National League against
396-490: A flat-fee purchase amount of $ 5,000 for the contract of any player from an NA member league team. This measure was leveled primarily at the Baltimore Orioles , then a Triple-A team that had dominated the minors by keeping players longer than many competitors, allowing the players to more fully develop, driving up their sale value to major-league teams and giving Baltimore a talent advantage. Deprived of this option by
495-667: A higher level of play. These leagues are intended almost exclusively to allow players to hone their skills; no admission is charged and no concessions are sold. As of the 2024 season, the Arizona Complex League and Florida Complex League seasons commence in early May and conclude in late July in order to provide players with previous experience in the Dominican Summer League with a full season in stateside professional baseball without having to compete for playing time with newly drafted players selected in
594-591: A limited membership which excluded less competitive and financially weaker teams. Professional clubs outside the NL responded by forming regional associations of their own. There was a series of ad hoc groupings, such as the New England Association of 1877 and the Eastern Championship Association of 1881. These were loose groups of independent clubs which agreed to play a series of games over the course of one season for
693-434: A more "traditional" or "pure" league, the National League did not adopt the designated hitter rule until the shortened 2020 season . Only the American League previously adopted the rule in 1973. In theory, this meant that the role of the manager was greater in the National League than in the American League, because the NL manager must take offense into account when making pitching substitutions and vice versa. However, this
792-615: A postseason championship—the World Series . Major League Baseball narrowly averted radical reorganization in November 1920. Dissatisfied with American League President and National Baseball Commission head Ban Johnson , NL owners dissolved the league on November 8 during heated talks on MLB reorganization in the wake of the Black Sox Scandal . Simultaneously, three AL teams also hostile to Johnson ( Boston Red Sox , Chicago White Sox , and New York Yankees ) withdrew from
891-526: A second major league in 1901, and the AL and NL engaged in a "baseball war" during 1901 and 1902 before agreeing to a "peace pact" that recognized each other as legitimate "major leagues". As part of this agreement, the leagues agreed to respect player contracts, establish rules about relationships with minor league clubs, and allow their champions to meet in a " World Series " to decide the overall professional baseball championship. National League teams have won 51 of
990-481: A second or third promotion for a minor league player, although some high first-round draftees, particularly those with experience playing college baseball , begin at this level. Below the High-A level is Single-A, named "Class A" before 2021, when it was also known as Single-A or Full-Season A, and "Low-A" for the 2021 season. This classification has three leagues: the 8-team California League , known as Low-A West for
1089-516: A statement, asserting that it is "unnecessary and unacceptable to wipe out one-quarter of minor league teams" and characterized the proposal as a way "to improve the profitability of MLB". Manfred rebuked Minor League Baseball for releasing the negotiations to the public and threatened to cut ties with MiLB altogether. The following changes, which represent the first significant overhaul of minor league classifications since 1963, have since been implemented: When MLB teams announced their affiliates for
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#17327877838951188-526: A steady supply of players, as many NA and independent teams could not afford to keep their doors open without the patronage of Major League Baseball. The leagues of the NA became subordinate to the major leagues, creating the first minor leagues in the current sense of the term. Other than the Pacific Coast League (PCL), which under its president Pants Rowland tried to become a third major league in
1287-517: A temporary replacement. There are currently three leagues in this classification: the 12-team Eastern League , known as Double-A Northeast for the 2021 season, with teams in the Northeast and Mid-Atlantic regions of the U.S., the eight-team Southern League (known as Double-A South for the 2021 season) with teams in the Deep South, and the 10-team Texas League (known as Double-A Central for
1386-660: A version of the World Series seven times during their ten-year coexistence. These contests were less organized than the modern Series, lasting as few as three games and as many as fifteen, with two Series (1885 and 1890) ending in disputed ties. The NL won four times and the AA only once, in 1886. Starting with the Pittsburgh Pirates in 1887, the National League began to raid the American Association for franchises to replace NL teams that folded. This undercut
1485-493: Is a professional baseball organization below Major League Baseball (MLB), including teams affiliated with MLB clubs. Entering the 2021 season, the number of full-season MLB-affiliated minor leagues with teams in the United States and Canada was reduced to 11, with a total of 120 teams (four per each of the 30 MLB franchises). There are also two affiliated rookie leagues based in the United States, with teams based at
1584-554: Is the older of two leagues constituting Major League Baseball (MLB) in the United States and Canada , and the world's oldest extant professional team sports league. Founded on February 2, 1876, to replace the National Association of Professional Base Ball Players (NAPBBP) of 1871–1875 (often called simply the "National Association"), the NL is sometimes called the Senior Circuit , in contrast to MLB's other league,
1683-486: Is usually that these veteran players will be in the majors by the end of the season, as their salaries tend to be higher than those of most prospects. One level below Double-A is the High-A level, named "Class A-Advanced" before 2021. This classification has three leagues: the 12-team Midwest League , known as High-A Central for the 2021 season, covering the Midwest, the six-team Northwest League , known as High-A West for
1782-464: The 1946 Mexican League season , players who "jumped" from their organized baseball clubs for more lucrative contracts in Mexico were blacklisted for having violated the reserve clause. Faced with a lawsuit seeking to overturn the 1922 ruling, then- Commissioner of Baseball Happy Chandler offered amnesty to the jumpers in 1949, thus keeping organized baseball's antitrust exemption intact. From then on,
1881-401: The American League , which was founded 25 years later and is called the "Junior Circuit". Both leagues currently have 15 teams. The National League survived competition from various other professional baseball leagues during the late 19th century. Most did not last for more than a few seasons, with a handful of teams joining the NL once their leagues folded. The American League declared itself
1980-672: The Arizona Complex League and Florida Complex League , known as the Arizona League and Gulf Coast League, respectively, before 2021, and one Caribbean-based league, the Dominican Summer League . The U.S.-based Rookie leagues play a schedule of approximately 60 games and are named "complex leagues" because games are played at their parent clubs' spring training complexes. Rosters consist primarily of newly drafted players who are not yet ready for
2079-568: The Arizona Complex League or Florida Complex League , and international summer baseball teams in the Dominican Summer League . While major league teams play a 162-game schedule, minor league seasons are shorter. As of 2022 , a complete season in Triple-A is 150 games, Double-A is 138 games, and High-A and Single-A are each 132 games. In addition to the below organized leagues, the off-season Arizona Fall League has six teams that play approximately 30 games apiece in autumn, with rosters comprising
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#17327877838952178-745: The Houston Astros three years later. In 1969, the league added the San Diego Padres and the Montreal Expos (now the Washington Nationals ), becoming a 12-team league for the first time since 1899. In 1969, as a result of its expansion to 12 teams, the National League—which for its first 93 years had competed equally in a single grouping—was reorganized into two divisions of six teams (respectively named
2277-475: The National Association of Professional Base Ball Players of 1871 to 1875, commonly referred to as the National Association, comprised all fully professional teams. This system proved unworkable, however, as there was no way to ensure competitive balance, and financially unsound clubs often failed in midseason. This problem was solved in 1876 with the formation of the National League (NL), with
2376-833: The National League East and West , although geographically it was more like North and South), with the division champions meeting in the National League Championship Series (an additional round of postseason competition) for the right to advance to the World Series. In 1993 the league expanded to 14 teams, adding the Colorado Rockies and the Florida Marlins (which became the Miami Marlins shortly after
2475-695: The Northwest League and Midwest League promoted with 75% of their teams. The Carolina League dropped to Low-A with seven of its ten teams and added five from the old South Atlantic League in trade; the SAL in turn moved to High-A with half of its previous 12-team roster, filling it out with two Carolina League High-A holdovers, one Midwest League returnee, and three formerly short-season New York-Penn League promotees. On February 12, 2021, Major League Baseball announced new league alignments for all 120 affiliated Minor League Baseball clubs effective as of
2574-567: The United States Congress signed a letter sent to Commissioner of Baseball Rob Manfred opposing the proposal, noting that it "is not in the best interest of the overall game of baseball" and that it would "devastate our communities, their bond purchasers and other stakeholders affected by the potential loss of these clubs." A response from MLB highlighted that the proposal aims to improve player travel and working conditions. On November 21, 2019, Minor League Baseball released
2673-498: The " reserve clause " and a foreshadowing of free agency ). The league's collapse led to a Supreme Court ruling in 1922— Federal Baseball Club v. National League —that effectively established an antitrust exemption for organized baseball. Another notable "outlaw league" was the Mexican League , which rapidly expanded in the years immediately after World War II, bringing it into conflict with organized baseball. Starting with
2772-402: The 119 World Series championships contested from 1903 to 2023. For decades, Major League baseball clubs only played teams from their own league during the regular season and most of the playoffs, with only their champions facing off in the World Series. This separation gradually caused the leagues to develop slightly different strategies and styles of play. The National League was long considered
2871-595: The 1950s and early 1960s. In 1949, the peak of the postwar minor league baseball boom, 448 teams in 59 leagues were members of the National Association of Professional Baseball Leagues, with the number of teams falling to 324 in 1952, and 243 in 1955. By the end of 1963, only 15 leagues above Rookie-level survived in the United States and Canada. After the 1962 season, the Triple-A American Association—which had lost key markets such as Milwaukee , Kansas City , Minneapolis–Saint Paul and Houston to
2970-523: The 2021 season on December 9, 2020, each of the 30 MLB teams had one affiliate at four levels—Triple-A, Double-A, High-A, and Low-A—for a total of 120 affiliated teams. Approximately 40 teams lost their MLB affiliations; the Fresno Grizzlies were demoted from Triple-A to Low-A; and the majority of surviving clubs at High-A and Low-A swapped levels, with the former Florida State League and California League dropped down nearly as intact units and
3069-466: The 2021 season) with teams in the Southwest and Great Plains. Some players jump to the majors from this level, as many of the top prospects are put here to play against each other rather than against minor and major league veterans in Triple-A. A small handful of players might be placed here to start, usually veterans from foreign leagues with more experience in professional baseball. The expectation
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3168-486: The 2021 season, located entirely in California , the 12-team Carolina League , known as Low-A East for the 2021 season, and the 10-team Florida State League , known as Low-A Southeast for the 2021 season. All three leagues were demoted from High-A to Single-A effective with the 2021 season. These leagues are a mix of players moving up from Rookie leagues, as well as the occasional experienced first-year player. Most of
3267-673: The 2021 season, with teams in the Pacific Northwest, and the 12-team South Atlantic League , known as High-A East for the 2021 season, with teams in the eastern states. All three leagues were reclassified prior to the 2021 season, with the Midwest League and the South Atlantic League promoted from Single-A and the Northwest League promoted from Class A Short Season. This level of play is often
3366-459: The AL and joined the eight NL teams in forming a new National League; the 12th team would be whichever of the remaining five AL teams loyal to Johnson first chose to join; if none did so an expansion team would have been placed in Detroit , by far the largest one-team city at that time. Four days later, on November 12, both sides met (without Johnson) and agreed to restore the two leagues and replace
3465-524: The All-Star Game, or in the World Series. Beginning in 1997, however, interleague games have been played during the regular season and count in the standings. Prior to the early 2020s – before the universal designated hitter rule was started in both leagues – as part of the agreement instituting interleague play, the DH rule was used only in games where the American League team was the home team. In 1999,
3564-478: The American Association. After the 1891 season, the AA disbanded and merged with the NL, which became known legally for the next decade as the "National League and American Association". The teams now known as the Cincinnati Reds , Los Angeles Dodgers (originally Brooklyn) and Pittsburgh Pirates (as well as the now-defunct Cleveland Spiders ) had already switched from the AA to the NL prior to 1892. With
3663-686: The American League under the auspices of Major League Baseball, which now operates much like other North American professional sports leagues, albeit with two "leagues" instead of "conferences". By 1875, the National Association of Professional Ball Players (NAPBBP, often referred to as the "National Association"), founded four years earlier, was suffering from a lack of strong authority over clubs, unsupervised scheduling, unstable membership of cities, dominance by one team (the Boston Red Stockings ), and an extremely low entry fee ($ 10) that gave clubs no incentive to abide by league rules when it
3762-586: The American League, the Cardinals have won the most World Series (11) followed by the Giants and Dodgers (8), Pirates (5), and Reds (5). St. Louis also holds the distinction of being the only AA club to defeat an NL club in the 19th-century version of the World Series, having done so against their now-division rival Cubs. The eight charter teams were the following: The eight-team lineup established in 1900 remained unchanged through 1952. All franchises are still in
3861-459: The Central had one more team). A third postseason round was added at the same time: the three division champions plus a wild card team (the team with the best record among those finishing in second place) now advance to the preliminary National League Division Series . Due to a players' strike, however, the postseason was not actually held in 1994. Before the 1998 season, the American League and
3960-522: The Dominican Summer League who have not yet been assigned to a domestic affiliate, as well as players placed on the minor league 60-day and full-season injured lists—during the minor league season, with a limit of 175 domestic players during the offseason. During the minor league season, the following roster limits for each classification are used: Triple-A Double-A High-A Single-A Rookie Off-season leagues Showcase league Partner leagues The earliest professional baseball league,
4059-597: The Federal League and several leagues within Negro league baseball. Today, the term "organized baseball" is considered outdated, due to its ambiguous meaning and racial overtones; the Society for American Baseball Research (SABR) instead recommends the term "affiliated baseball". National League (baseball) The National League of Professional Baseball Clubs , known simply as the National League ( NL ),
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4158-603: The July Major League Baseball draft . This adjusted schedule also allows the top Rookie-level prospects in each organization to be promoted to class Single-A for the final two months of the professional baseball season upon the conclusion of the complex league seasons. As of the 2024 season, each major league club may have no more than 165 players assigned to the rosters of their domestic affiliates (i.e., Triple-A, Double-A, High-A, Single-A, and complex-league Rookie)—excluding international players assigned to
4257-553: The Major Leagues since 1953—disbanded. The surviving International and Pacific Coast leagues absorbed the four remaining American Association franchises. Meanwhile, at the Double-A level and below there were even more significant changes: Designations below Class A disappeared because the lower levels could not sustain operation during a large downturn in the financial fortunes of minor league baseball, due to factors including
4356-487: The Mexican League peacefully coexisted with organized baseball until 1955, when it was admitted as an affiliated minor league. Major League Baseball (MLB) was officially created in 2000, centralizing governance of the National League and American League. MLB considers several of the above-noted outlaw leagues as also having been "major", and recognizes the statistics of those leagues—such recognized leagues include
4455-634: The NAPBBP because Hulbert had signed them to his club using what were considered questionable means. Hulbert had a great vested interest in creating his own league, and after recruiting St. Louis privately, four western clubs met in Louisville, Kentucky , in January 1876. With Hulbert speaking for the five later in New York City on February 2, 1876, the National League of Professional Base Ball Clubs
4554-577: The NL and the AA could only reserve players who had been paid at least $ 1,000. Northwestern League teams could reserve players paid $ 750, implicitly establishing the division into major and minor leagues. Over the next two decades, more minor leagues signed various versions of the National Agreement. Eventually, the minor leagues allied to negotiate jointly. In the late 1890s, the Western League run by Ban Johnson decided to challenge
4653-490: The NL did not have teams, offered Sunday games and alcoholic beverages in locales where permitted, and sold cheaper tickets everywhere (25 cents versus the NL's standard 50 cents, a hefty sum for many in 1882). The NL struck back by establishing new clubs in 1883 in AA cities Philadelphia (later called "Phillies") and New York (the team that would become the Giants). The National League and the American Association participated in
4752-467: The NL to modify its labor practices, including a salary cap and a reserve clause that bound players to their teams indefinitely. The NL suffered many defections of star players to the Players' League, but the P.L. collapsed after one season. The Brooklyn, Chicago, Pittsburgh, and New York franchises of the NL absorbed their Players' League counterparts. The labor strike of 1890 hastened the downfall of
4851-517: The NL's position. In 1900, he changed the name of the league to the American League (AL) and vowed to make deals to sign contracts with players who were dissatisfied with the pay and terms of their deals with the NL. This led to a turf war that heated up in 1901 enough to concern Patrick T. Powers , president of the Eastern League, and many other minor league owners about the conflict potentially affecting their organizations. Representatives of
4950-516: The NL. By 1903, the upstart AL had placed new teams in the National League cities of Boston , Chicago, New York, Philadelphia , and St. Louis , as well as the "abandoned" NL cities Cleveland and Washington (and, temporarily, Baltimore). Only the Cincinnati Reds and Pittsburgh Pirates had no AL team in their markets. The AL among other things enforced a strict conduct policy among its players. The National League at first refused to recognize
5049-577: The National Association agreement. It did not include Negro league baseball , and was racially segregated by "gentleman's agreement" until 1947 . Independent baseball leagues not bound by the agreement were sometimes pejoratively referred to as "outlaw leagues," due to their resistance to outside governance. Within the United States, the most notable major outlaw league was the Federal League of 1914–1915, which lured players away from their established clubs with better pay (the first challenge to
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#17327877838955148-481: The National League each added a fifteenth team. Because of the odd number of teams, only seven games could possibly be scheduled in each league on any given day. Thus, one team in each league would have to be idle on any given day. This would have made it difficult for scheduling, in terms of travel days and the need to end the season before October. In order for MLB officials to continue primarily intraleague play, both leagues would need to carry an even number of teams, so
5247-607: The Texas League, which had last operated in 1942, and the Southern Association) became Class AA. Class A remained the third-highest classification, with lower levels still ranked Class B through Class D in descending order, with Class D being the equivalent of later Rookie leagues. The impact of the Korean War in 1950 caused a player shortage in many cities below Class B. In 1952, the "Open" classification
5346-671: The Triple-A Inter–American League (1979). None lasted more than a full season. In October 2019, Baseball America reported that Major League Baseball had proposed dramatic changes to MiLB that would take effect after expiration of the Professional Baseball Agreement, which governed the MLB–MiLB relationship, at the end of the 2020 season. This included the elimination of many minor league teams. In mid-November 2019, more than 100 members of
5445-474: The Triple-A level. Such players are eligible to be added to a team's active major league roster. For teams in contention for a playoff spot late in a season, it gives them fresh players, while for teams not in contention, it gives them an opportunity to evaluate their second-tier players against major league competition. Some Triple-A players are "career minor leaguers", former prospects whose skill growth has halted and who are not likely to advance to MLB, unless as
5544-608: The West Coast of the U.S. for the first time. The NL remained an eight-team league for over 60 years. (For the eight teams, see Expansion (1887–1899) above, and "Classic Eight" below.) In 1962—facing competition from the proposed Continental League and confronted by the American League 's unilateral expansion in 1961—the NL expanded by adding the New York Mets and the Houston Colt .45s. The "Colts" were renamed
5643-643: The Western states, the other leagues maintained autonomy in name only, being totally economically dependent upon the AL and NL. In 1922, the United States Supreme Court decision Federal Baseball Club v. National League (259 U.S. 200), which grants baseball a special immunity from antitrust laws , had a major effect on the minor leagues. The special immunity meant that the AL and NL could dictate terms under which every independent league did business. By 1925, major league baseball established
5742-608: The behavior of teammates that he quit playing in 1891 to become one of America's most famous evangelical Christian preachers. Most fans appear to have felt the same way, because attendance at games was plummeting by 1900. After eight seasons as a 12-team league, the NL contracted back to eight teams for the 1900 season, eliminating its teams in Baltimore , Cleveland , Louisville (which has never had another major league team since), and Washington . This provided an opportunity for competition. Three of those cities received franchises in
5841-449: The clubs' defiance by expelling them, an act which not only shocked baseball followers (New York and Philadelphia were the two most populous cities in the league) and the then sports world, but made it clear to clubs that league scheduling commitments, a cornerstone of competitive integrity, were not to be ignored. The National League operated with only six clubs during 1877 and 1878. Over the next several years, various teams joined and left
5940-450: The decision was made to move one club from the AL Central to the NL Central. Eventually, Milwaukee agreed (after Kansas City declined) to change leagues; the National League now had 16 teams, the American League 14 with the switch. Beginning with the 2013 season, the Houston Astros moved from the National League Central to the American League West, which now gave both leagues three divisions of five teams each. Often characterized as being
6039-421: The designated hitter rule in 2022 , and the expansion of interleague play to 46 games beginning in 2023 , has further blurred the lines between leagues. Though both leagues agreed to be jointly governed by a commissioner in 1920, they remained separate legal and business entities with their own president and management. This was the case until after the 1999 season, when the National League legally merged with
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#17327877838956138-400: The different minor leagues met at the Leland Hotel in Chicago on September 5, 1901. In response to the NL–AL battle, they agreed to form the National Association of Professional Baseball Leagues (NAPBL), sometimes shortened to National Association (NA), which would later adopt the trade name "Minor League Baseball". The purpose of the NAPBL at the time was to maintain the independence of
6237-417: The end of the 2011 season). In 1998, the Arizona Diamondbacks became the league's fifteenth franchise, and the Milwaukee Brewers moved from the AL to the NL, giving the NL 16 teams for the next 15 seasons. In 1994, the league was again reorganized, into three geographical divisions (East, West and Central , all currently with five teams; from 1994 to 1997 the West had one fewer team, and from 1998 to 2012,
6336-435: The flat-fee policy, minor league teams had little choice but to sell players as soon as they drew major-league interest. The earliest classifications used in the minor leagues began circa 1890, for teams that were party to the National Agreement of 1883. The different levels represented different levels of protection for player contracts and reserve clauses : After the National Association of Professional Baseball Leagues
6435-446: The following assignments entering the 1902 season: Additional classifications added prior to World War II included: In 1946, with the minor leagues poised for unprecedented growth, the higher-level classifications were changed. Class AAA ("Triple-A") was created and the three Double-A circuits (the Pacific Coast League , International League , and the American Association ) were reclassified into Triple-A. Class A1 (comprising
6534-435: The ineffective National Commission with a one-man Commissioner in the person of federal Judge Kenesaw Mountain Landis . The National League circuit remained unchanged from 1900 through 1952. In 1953 the Braves moved from Boston to Milwaukee ; in 1966 they moved again, to Atlanta . In 1958 the Brooklyn Dodgers and the New York Giants moved to Los Angeles and San Francisco, respectively, bringing major league baseball to
6633-399: The institution of interleague play, little remains to differentiate between the two leagues. By 2011, MLB had changed its policy on interleague play, deciding to schedule interleague games throughout the season rather than only during specially designated periods. This policy would allow each league to have 15 teams, with one team in each league playing an interleague game on any given day. As
6732-451: The later stages of the negotiations to develop rules for the acquisition of players from their leagues by the NL and the AL. The 1903 agreement ensured that teams would be compensated for the players that they had taken the time and effort to scout and develop, and no NA team was required to sell their players, although most did because the cash was an important source of revenue for most teams. The NA leagues were still fiercely independent, and
6831-572: The league, with five remaining in the same city. Following the 1999 season, the American and National Leagues were merged with Major League Baseball, and the leagues ceased to exist as business entities. The role of the league president was eliminated. In 2001, Bill Giles , son of Warren Giles, was named honorary president of the NL. Honorary presidents perform only ceremonial duties such as presenting league championship trophies and representing their respective leagues at All-Star Games . Minor League Baseball Minor League Baseball ( MiLB )
6930-409: The league: the Chicago Cubs and the Atlanta Braves (originally in Boston, and later Milwaukee). The Cubs are the only charter member to play continuously in the same city. The other two pre-1892 teams still in the league are the Philadelphia Phillies and the San Francisco Giants (originally New York), both of which joined in 1883. The National League became a 12-team circuit with monopoly status for
7029-405: The leagues involved. Several did not sign the agreement and continued to work independently. Powers was made the first president of the NAPBL, whose offices were established in Auburn, New York . In 1903, the conflict between the AL and NL ended in the National Agreement of 1903 , which created the National Baseball Commission to oversee the major and minor leagues. The NAPBL became involved in
7128-577: The merger, the NL absorbed the St. Louis Browns (now known as the St. Louis Cardinals ), along with three other teams that did not survive into the 20th century—the Baltimore Orioles (not the current MLB team), Louisville Colonels , and Washington Statesmen . While four teams that moved from the AA remain in the NL today (Pittsburgh [1887], Cincinnati [1890], Los Angeles [originally Brooklyn; 1890], and St. Louis [1892]), only two original NL franchises (1876) remain in
7227-584: The minor leagues, such as Buzz Arlett , Jigger Statz , Ike Boone , Buddy Ryan , Earl Rapp , and Frank Shellenback , as comparable to major league players. Leagues in the NA would not be truly called minor until Branch Rickey developed the first modern farm system in the 1930s. The Commissioner of Baseball , Kenesaw Mountain Landis fought Rickey's scheme, but, ultimately, the Great Depression drove teams to establish systems like Rickey's to ensure
7326-466: The more "traditional" league, a reputation most exemplified by the NL's more prevalent use of " smallball " tactics and lack of a designated hitter rule, which the AL implemented in 1973. However, with the advent of free agency in the 1970s allowing for more player movement between leagues, and the introduction of regular season interleague play in 1997, the difference in play between the two major leagues has diminished considerably. The NL's adoption of
7425-405: The new league, but reality set in as talent and money was split between the two leagues, diluting the league and decreasing financial success. After two years of bitter contention, a new version of the National Agreement was signed in 1903. This meant formal acceptance of each league by the other as an equal partner in major-league baseball, mutual respect of player contracts, and an agreement to play
7524-419: The newly christened American League (AL) when the minor Western League changed its name to the AL in 1900, with the approval of the NL, which regarded the AL as a lesser league since they were a party to the National Agreement. The AL declined to renew its National Agreement membership when it expired the next year, and on January 28, 1901, the AL officially declared itself a second major league in competition with
7623-500: The offices of American League and National League presidents were discontinued and all authority was vested in the Commissioner's office. The leagues subsequently appointed "honorary" presidents to carry out ceremonial roles such as the awarding of league championship trophies. Additionally, the distinction between AL and NL umpires was erased, and instead all umpires were unified under MLB control. Following these actions, as well as
7722-597: The other two leagues, as part of a reorganization of the Triple-A level in 1997. The International League features teams from the Atlantic coast and midwestern U.S., while the Pacific Coast League features teams from the Pacific coast and the southwest. Both young players and veterans play for Triple-A teams. Parent clubs often hold players who are on the 40-man roster , but not on the active MLB roster, at
7821-591: The parent clubs' spring training complexes in Arizona and Florida , an off-season autumn league, and one affiliated rookie league in the Dominican Republic . Additionally, four independent leagues are in association with MiLB. As of the 2022 season, the minor league system is divided into four classes: Triple-A (AAA), Double-A (AA), High-A (A+), and Single-A (A). Major League Baseball franchises may also maintain one or two complex-based rookie teams in
7920-457: The presence of the pitcher in the NL batting order. As the collective bargaining agreement came closer to expiring after the 2021 season, owners expressed their intentions to use the designated hitter in all games starting in 2022. In response to the COVID-19 pandemic in 2020, rule changes were instituted in both leagues for the 2020 season , which included an abbreviated 60-game schedule,
8019-402: The rest of the decade. The league became embroiled in numerous internal conflicts, not the least of which was a plan supported by some owners (and bitterly opposed by others) to form a "trust", wherein there would be one common ownership of all twelve teams. The NL used its monopsony power to force a $ 2,400 ($ 85,000 today) limit on annual player wages in 1894. As the 20th century dawned, the NL
8118-608: The rise of television broadcasts of major league sports across broad regions of the country. As part of the 1963 reorganization, Major League clubs increased their commitments to affiliate with minor league teams through Player Development Contracts, outright ownerships, or shared affiliations and co-op arrangements. The minor league system that evolved following the 1963 reorganization remained in place through 2020, categorizing leagues into one of six classes: Triple-A (AAA), Double-A (AA), Class A-Advanced (High A or A+), Class A (Low A), Class A Short Season, and Rookie. Furthermore, Rookie
8217-632: The stability of the AA. Other new leagues that rose to compete with the National League were the Union Association and the Players' League . The Union Association was established in 1884 and folded after playing only one season, its league champion St. Louis Maroons joining the NL. The Players' League was established in 1890 by the Brotherhood of Professional Base-Ball Players, the sport's first players' union, which had failed to persuade
8316-494: The stands of the South End Grounds started a fire. The blaze quickly got out of hand and swept through downtown Boston, destroying or damaging 100 buildings. Team owners argued with each other, and players hated the NL's $ 2,400 salary cap. Many teams also ran into trouble with city governments that forbade recreational activities on Sunday . Billy Sunday , a prominent outfielder in the 1880s, became so disgusted with
8415-646: The state capital of Albany, New York ), Worcester ( Massachusetts ), Boston , and Providence . In 1883, new New York and Philadelphia clubs began National League play. Both teams remain in the NL today, the Phillies in their original city and the New York franchise (later named Giants) now in San Francisco since 1958. The NL encountered its first strong rival organization when the American Association began play in 1882. The AA played in cities where
8514-580: The struggling league. By 1880, six of the eight charter members had folded. The two remaining original NL franchises, Boston and Chicago, remain still in operation today as the Atlanta Braves and the Chicago Cubs . When all eight participants for 1881 returned for 1882—the first off-season without turnover in membership—the "circuit" consisted of a zig-zag line connecting the eight cities: Chicago , Detroit , Cleveland , Buffalo , Troy (near
8613-534: The teams in the Florida State League are owned by major league parent clubs and use their spring training complexes. In 2022, the official name of the class became Single-A. Minor leagues with the Rookie classification play a shortened season that traditionally began in mid-June and ended in late August or early September. This lowest level of minor league baseball consists of two US-based leagues,
8712-404: The term minor was seldom used in reference to them, save by the major-market sportswriters. Sports news, like most news generally, often did not travel far in the days before radio and television, so, while the leagues often bristled at the major market writers' descriptions, they viewed themselves as independent sports businesses. Many baseball writers of that time regarded the greatest players of
8811-513: The time it seemed like the PCL would eventually become a third major league. The PCL would revert to Triple-A in 1958, due to increasing television coverage of major league games and in light of the Dodgers and Giants moving to Los Angeles and San Francisco , respectively. A significant reorganization of the minor leagues took place in 1963, caused by the contraction of clubs and leagues during
8910-439: The top prospects associated with each of the six MLB divisions. This classification currently includes two affiliated leagues: the 20-team International League and the 10-team Pacific Coast League , known as Triple-A East and Triple-A West, respectively, for the 2021 season. For most of the 20th century, Triple-A also included the American Association , based in the Midwest, but that league disbanded with its clubs absorbed by
9009-417: The use of the designated hitter in all games, and expanded rosters. The National League reverted to its old batting rules during the 2021 season , but starting with the 2022 season , they permanently adopted the designated hitter rule after a new CBA was ratified. For the first 96 years of its coexistence with the American League, National League teams faced their AL counterparts only in exhibition games,
9108-410: Was created. The Pacific Coast League (PCL), which had been rated Triple-A since 1946, was the only minor league to obtain this classification, which it held through 1957. At this time, the major leagues only extended as far west as St. Louis, Missouri , and as far south as Washington, D.C. This classification severely restricted the rights of the major leagues to draft players out of the PCL, and at
9207-458: Was disputed by some, such as former Detroit Tigers manager Jim Leyland , who claimed that the American League is more difficult because AL managers are required to know exactly when to pull a pitcher, whereas an NL manager merely pulls his pitcher when that spot comes up in the batting order. Overall, there were fewer home runs and runs scored in the National League than in the American, due to
9306-546: Was established with eight charter members, as follows: The National League's formation meant the end of the old National Association after only five seasons, as its remaining clubs shut down or reverted to amateur or minor league status. The only strong club from 1875 excluded in 1876 was a second one in Philadelphia, often called the White Stockings or later Phillies . The first game in National League history
9405-422: Was founded in 1901, classifications were redefined: † Draft fee set an amount for a team in a higher class to select a player; n/a for Class A as it would be up to each team to negotiate with an interested major league club. ‡ Protection fee reserved a player to a team, even after a contract expired, preventing the player for seeking employment with any other team. All minor leagues were classified, and had
9504-519: Was further informally subdivided into Rookie Advanced, complex-based Rookie, and international summer baseball. There have also been some failed start-up leagues. During the 1970s, three official minor leagues (members of NAPBL) attempted unsuccessfully to revive unaffiliated baseball (teams not associated with specific MLB franchises) within the organized baseball structure. These were the Class A Gulf States League (1976) and Lone Star League (1977), and
9603-474: Was in trouble. Conduct among players was poor, and fistfights were a common sight at games. In addition to fighting each other, they fought with the umpires and often filled the air at games with foul language and obscenities. A game between the Orioles and Boston Beaneaters (a precursor to today's Atlanta Braves) in 1894 ended up having tragic consequences when players became engaged in a brawl and several boys in
9702-498: Was inconvenient to them. William A. Hulbert (1832–1882), a Chicago businessman and an officer of the Chicago White Stockings of 1870–1889, approached several NA clubs with the plans for a professional league for the sport of baseball with a stronger central authority and exclusive territories in larger cities only. Additionally, Hulbert had a problem: five of his star players were threatened with expulsion from
9801-690: Was played on April 22, 1876, at Philadelphia 's Jefferson Street Grounds , at 25th & Jefferson Streets, between the Philadelphia Athletics and the Boston baseball club. Boston won the game 6–5. The new league's authority was soon tested after the first season. The Athletic and Mutual clubs fell behind in the standings and refused to make western road trips late in the season, preferring to play games against local non-league competition to recoup some of their financial losses rather than travel extensively incurring more costs. Hulbert reacted to
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