As part of their celebrations for the 10th anniversary of the Spanish Wikipedia, Wikimedia Argentina has organized a contest to write biographies of notable Argentine women: http://es.wikipedia.org/wiki/Wikipedia:Wikiconcurso/Concurso_Wikipedia_10_-_... They have a list of ideas of missing biographies: http://es.wikipedia.org/wiki/Wikipedia:Wikiconcurso/edici%C3%B3n_21/Lista_de...
What a lovely idea for combating systemic bias. (This will be the 21st (!) article writing contest on es:wp: http://es.wikipedia.org/wiki/Wikipedia:Wikiconcurso). The contest starts May 22. ¡Feliz cumpleaños, Wikipedia!
-- phoebe