Vincezo Viviani, born in 1622, mathematician, He founded the Acedemia del Cimento, one of the first great scientific societies. He died in1703 at age 81.
Joseph Lister, born in 1827, surgeon, He used carbolic acid in 1867 to kill infectious organisms during surgery. He died in 1912 at age 85.
Matthias Schleiden, born in 1804, botanist, He was a lawyer and was so unhappy he contemplated suicide. His hobby of botany probably saved his life. He discovered the cell theory in 1838 for plants. He was among the first German scientists to accept Darwin’s evolution. He died in 1881 at age 77.