As one of the first motion picture stars, Florence Lawrence was known as “The Biograph Girl.” Throughout her career she appeared in almost 300 films and became one of the first women to lead a US film studio. She was also an inventor and was credited as the inventor of the turn signal and the brake signal for automobiles.
Cataract surgery pioneer Patricia Bath was the first African-American to complete a residency in ophthalmology, after obtaining her MD at Howard University and her fellowship in ophthalmology at Columbia University.
In 1759, French king Louis XV launched a project to reduce infant mortality in the country and commissioned Parisian midwife Angélique du Coudray to train peasant women as midwifes. From 1760 to 1783, she trained approximately 10,000 women across France, visiting poor women in rural areas and sharing her extensive knowledge with them.