Ada Lovelace day is on Oct 15.. (my Ada Lovelace archive is here)
http://www.mutanteggplant.com/vitro-nasu/category/debugging-ada-lovelace/

It was also on March 24.. .. or around that time.. I suppose we can have as many celebrate women in science day in a year.
As you know Ada was Lord Byron's daughter.   Tilda Swinton played Ada .. did anybody see the film?

Fung Lin Hall