అర్థం : Author of the first novel by an African American that was published in the United States (1808-1870).

అర్థం : English writer of novels and short stories (1913-1991).

అర్థం : Scottish ornithologist in the United States (1766-1813).

అర్థం : United States physicist honored for his work on cosmic microwave radiation (born in 1918).

అర్థం : Canadian geophysicist who was a pioneer in the study of plate tectonics (1908-1993).

అర్థం : American Revolutionary leader who was one of the signers of the Declaration of Independence (1742-1798).

అర్థం : United States entomologist who has generalized from social insects to other animals including humans (born in 1929).

అర్థం : Scottish physicist who invented the cloud chamber (1869-1959).

అర్థం : United States literary critic (1895-1972).

అర్థం : 28th President of the United States. Led the United States in World War I and secured the formation of the League of Nations (1856-1924).

అర్థం : A peak in the San Juan mountains of Colorado (14,246 feet high).