Making History Three African-Americans are nominated this year. ent_washington_denzel_trainday.jpg G0 ABCNEWS.com www.ABCNEWS.com http://play.rbn.com/?url=swave/abc/g2demand/020318siegel.rm&rpcontexturl=abcnews.go.com/webcasts/realone/topnews_frameset.html&rpurl=abcnews.go.com/sections/entertainment/ PLAY headline