Reblogged By: La Tray Source: teacher.scholastic.com Media: teacher.scholastic.com / United Shoe Machinery Corporation, http://www.blackinventor.com. Posted: Monday February 3, 2014 @ 1:43 p.m. PST   Jan Ernst Matzeliger   Jan Ernst Matzeliger (1852–1889) invented a shoemaking machine that increased shoemaking speed by 900%!   Fast Fact: In 1992, the U.S. made a postage stamp in honor…