what women have been game changers 
rebecca lee crumpler overcame racism and sexism to obtain a medical degree in 1864 she became the first female african american doctor in the u s 5 rachel carson the marine scientist and author of the game changing book about the harm caused by pesticides silent spring is often credited with launching the environmental movement in the 1960s 6 muriel siebert became the first woman to buy a seat on the new york stock exchange in 1967 she established the first women owned and operated brokerage firm in 1969 7 these are just three of countless women game changers each of whom faced incredible obstacles but persevered to accomplish remarkable goals that affected the lives of others 