Women's History Month: Women you should know who changed the world

Behind some of the most fascinating discoveries and innovations, and bold social changes, are women whose names might not be familiar but whose stories are worth knowing. Of course, there are far too many to all fit on one list. But here are a handful of profiles from The Conversation that highlight the brilliance, grit and unique perspectives of some of the women in history who made huge leaps in the math, physics and geoscience – plus leaders of great cultural and political significance.