["May 9 Buffalo Bill Cody's Wild West Show opens in London.", 'May 11 13th Kentucky Derby: Isaac Lewis aboard Montrose wins in 2:39.25.', 'May 13 15th Preakness: William Donohue aboard Dunboyne wins in 2:39.25.', 'May 18 Emmanuel Chabrier\'s opera "Le Roi Malgré Luis" premieres in Paris.']