On May 17, 1792, twenty-four merchants formed the New York Stock Exchange at 70 Wall Street. — May 17, 1877: Edwin T. Holmes installed the first telephone switchboard burglar alarm. — And on May 17, 1920 First flight by Dutch airline KLM (Koninklijke Luchtvaart Maatschappij), a joint venture with British Aerial Transport; a de Havilland double-decker plane from London landed at Schiphol in Amsterdam. — Just one day left! We are running a two-week-long sale in all of our percussion revolvers at E