Built in 1914 , 23 Wall Street was known as " The Corner " and " The House of Morgan " , and for decades , the bank 's headquarters was the most important address in American finance . At noon , on September 16 , 1920 , an anarchist bomb exploded in front of the bank , killing 38 and injuring 400 . Shortly before the bomb went off , an unknown person placed a warning note in a mailbox at the corner of Cedar Street and Broadway . The warning read : " Remember we will not tolerate any longer . Free the political prisoners or it will be sure death for all of you . American Anarchists Fighters . " While theories abound about who was behind the Wall Street bombing and why they did it , after twenty years of investigation the FBI rendered the file inactive in 1940 without ever finding the perpetrators
Wall Street bombing
Wall Street bombing
J.P. Morgan & Co.