Matthias Schleiden. He stated that the different parts of the plant organism are composed of cells. Thus, Schleiden and Schwann became the first to formulate what was then an informal belief as a principle of biology equal in importance to the atomic theory of chemistry.
Derek Jeter and his wife announced they are expecting their first child on a poignant post on their website Monday. Hannah Jeter said she is expecting a baby girl for which the excited father-to-be has already picked out a name.
Photo: Getty Images. Derek Jeter is about to be a married man. Several sources have confirmed to ET that the 42-year-old former New York Yankees player will marry 26-year-old model Hannah Davis this weekend in Napa, California.