In 1904 the 2 Villa Crespo clubs Mártires de Chicago and Sol de la Victoria underwent a merger to form Asociación Atlética y Futbolística Argentinos Unidos de Villa Crespo.
This name was soon shortened to Asociación Atlética Argentinos Juniors.
Mártires de Chicago were originally named in honour of the Anarchists behind the 1886 Haymarket Riot in Chicago.