Famous Inventor Birthdays, April, 21 in United States, Browse celebrity birthdays sorted by region of birth, occupation and birthplace and more.
Edwin S. Porter
American film director
Michel Ter-Pogossian
American physicist
Hannibal Goodwin
American inventor in film development
Joseph Koenig
American businessperson and inventor
John Muir
Scottish-born American naturalist and author
English singer-songwriter, rapper and actor