Caprice Casson offers cool water to Dana Treece, 10, a young drummer in the JC Nalle Elementary School band, as they make they way along Pennsylvania Avenue NW during the District of Columbia Emancipation Day 2012 parade in Washington, D.C., Monday, April 16, 2012., celebrating the150th anniversary of the District of Columbia Emancipation Act. 150 ears ago, on April 16, 1862, President Abraham Lincoln signed a bill ending slavery in the District of Columbia. Passage of this law came 8 1/2 months before President Lincoln signed his Emancipation Proclamation. (Rod Lamkey Jr/The Washington Times)