Use of ‘African-American’ Dates to Nation’s Early Days - NYTimes.com

"The O.E.D.’s entry, revised in 2012, traces the first known occurrence to 1835, in an abolitionist newspaper. But now, a researcher has discovered a printed reference in an anti-British sermon from 1782 credited to an anonymous “African American,” pushing the origins of the term back to the earliest days of independence."