The Wall Street bombing was an act of terrorism on Wall Street at 12:01 pm on Thursday, September 16, 1920. The blast killed 30 people immediately, and another eight later died of wounds that they sustained in the blast. There were 143 seriously injured, and the total number of injured was in the hundreds.: 160–61  The bombing was never solved, although investigators and historians believe it was carried out by Galleanists, a group responsible for a series of bombings the previous year. Source: Wikipedia (en)