Unit 9 By MaribelAponte Dec 2, 1863 Lincoln announces "10 percent" Reconstruction Plan. Apr 15, 1865 Lincoln assassinated. Feb 3, 1870 Fifteenth Amendment ratified. Apr 3, 1871 Tweed scandal in New York Nov 6, 1888 Harrison defeats Cleveland for presidency . Feb 20, 1893 Depression of 1893 begins