7/30/1641 Regnier de Graaf, anatomist, made important contributions to understanding the male reproductive system, he invented the syringe. he died in 1673 at the age of 32.
7/30/1863 Henry Ford, industrialist, with his belief in making cheap consumer goods with high wages for workers he became one of the richest men in the world. He introduced the assembly line to produce the Model T Ford, he died in 1947 at age 83.
7/30/1889 Vladimir Zworykin, physicist He played a role in the practical development of television from the early thirties, including charge storage-type tubes, infrared image tubes and the electron microscope, he died in 1982 at 92 years of age.