Few smiles could be found at the “Happiest Place on Earth” when Disneyland opened its gates for the first time on July 17, 1955. Epic traffic jams, counterfeit tickets, broken rides, food shortages and a lack of water on a 100-degree day all plagued the theme park’s unveiling. On the 60th anniversary of the opening of Disneyland, look back at the day park employees dubbed “Black Sunday.”