Theodor Schwann
— Noun
– English
~ German physiologist and histologist who in 1838 and 1839 identified the cell as the basic structure of plant and animal tissue (1810-1882)
Theodor Mommsen
— Noun
– English
~ German historian noted for his history of Rome (1817-1903)
Theodor Seuss Geisel
— Noun
– English
~ United States writer of children's books (1904-1991)
Theodore Roosevelt
— Noun
– English
~ 26th President of the United States; hero of the Spanish-American War; Panama Canal was built during his administration; "Theodore Roosevelt said `Speak softly but carry a big stick'" (1858-1919)