Gun Control By Nerf Strike May 25, 1787 constitution signing seventh proposal of the pennsylvania minority. Jun 26, 1934 Supreme court ruling declares shotguns shorter than 18" were not necessary to the upkeep of a state militia. May 2, 1967 Black Panther march on California State building. Sep 13, 1994 Federal Assault weapons ban starts Period: Sep 13, 1994 to Sep 13, 2004 Federal Assault weapons ban Apr 20, 1999 Columbine Massacre Sep 13, 2004 Federal Assault weapons ban ends Jun 26, 2008 District of Columbia vs. Heller Nov 4, 2008 President Obama voted into office Dec 14, 2012 Newtown connecticut shooting Jul 1, 2013 Salina City Kansas exempts conceal and carry law. Jul 9, 2013 Illinois dropped final conceal and carry ban.