Asociación Atlética Argentinos Juniors was established in August 1904 under the name The Martyrs of Chicago. The club has enjoyed significant levels of success in Argentine football and is well-known for producing a number of world class-talents. Argentinos Juniors are especially noted for giving Diego Maradona his professional debut when he was just fifteen years old.
In 1909 the club joined the Argentine Football Association, but subsequently left and became affiliated with the Federación Argentina de Fútbol in 1912. In the 1920s, the two associations joined forces, but in 1931, Argentinos Juniors were one of 18 clubs to break away and form Argentina's first professional league. However, in 1937, the club finished bottom of the league and were relegated.
The 1980s marked the club's most successful period and in 1984 they won the Metropolitano tournament to claim their first ever Primera División title. The following year saw even greater success. On top of their second Primera División championship, Argentinos won their first international competiton, the 1985 Copa Libertadores. In the final, they overcame América de Cali and later went on to add the Copa Interamericana to their trophy haul. However, over the next decade the team struggled and in 1996, they were relegated from Argentina's top flight. After bouncing between the first and second tier, Argentinos won the 2010 Clausura tournament to claim their third Primera División title.
Aside from Diego Maradona, a number of other successful footballers have either emerged from the youth academy or have started their professional careers with the club. Some of the biggest examples include Juan Román Riquelme, Esteban Cambiasso, Fabricio Coloccini, Sergio Batista and Fernando Redondo.
Argentinos play their home matches at the Estadio Diego Armando Maradona, previously known as the Estadio Argentinos Juniors. The venue was named after their former player in 2004, to mark the club's 100th year. It is able to hold a maximum of 24,380 supporters.