Pickering's Harem

In 1881, Edward Pickering, the director of the Harvard College Observatory, became so impatient with a male lab assistant’s work that he famously declared his maid could do a better job. Rather than take offense, his 24-year-old maid, Williamina Fleming, instead took him up on the offer. She ended up working at the Observatory for the next 30 years, supervising the tedious work of cataloging photographic plates, but also discovering variable stars and novae, helping to develop a classification system—and, perhaps even more importantly, hiring nearly 40 female assistants, many of whom went on to have distinguished scientific careers.  
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