Buzz·Posted on 9 Feb 2014A 200-Year-Old Document Freeing A Slave Is Up For Auction Next WeekThe slave owner writes that he's "of the opinion that it is my duty to do by others, as I would be done by."by Alan WhiteBuzzFeed News Reporter, UKLinkFacebookPinterestTwitterMail This document dates from 1817. It grants freedom to a 25-year-old slave named Moses. The document pre-dates Abraham Lincoln's Emancipation Proclamation by more than 30 years.