Early Editions of Leaves of Grass
		1855 Self-published the first edition 1856 Added new poems and revised old ones. 1860 Began grouping poems thematically; includes “A Child’s Reminiscence,” which will become “Out of the Cradle, Endlessly Rocking” 1867 Incorporates Drum-Taps (1865), including “When Lilacs Last in the Dooryard Bloom’d” and “O Captain, My Captain”