An estimated 41 million children in the United States will don costumes and go door-to-door on Halloween 2004. The celebration of Halloween was generally banned in colonial times. The practice gradually became more acceptable in the 1800s, as elements of Halloween were incorporated into harvest festivals, and as waves of new immigrants brought their Halloween customs to the U.S.
(Photograph shot on assignment for, but not published in, "Broadway, Street of Dreams," September 1990, National Geographic magazine)