Do you know anything about walt whitman

Walt Whitman was born on May 31,1819 in Long Island.His family is a working-class.In 1842,he pubished his first novel Frankim Evans.In 1855,Whitman he pubished the first edition of Leaves Of Grass with hia own money.
He is the great typical American poet in America. His great contribution to American literature is his use of free verse.His thought of democracy have been influential in world literature.Walt Whitman`s influence over moder poetry is great in the world as well as in America.His best work  has become part of the common property of western culture .Many later poets are on his debts.