University of California fielded its first American Football team in 1886. In March 1892, the school played it first game against Stanford University. This was the first instance of the annual rivalry match – The Big Game, one of oldest college rivalries in the United States. In 1899, coached by Princeton alumni Garrett Cochran, Cal played a home against future legend Pop Warner and the emerging power of that period the Carlisle Indian Industrial School. Warner took up Cochran's challenge that his undefeated team could beat any East Coast opponent. The game took place in San Francisco on Christmas Day of that year. Even though Carlisle dominated the majority of its season's opponents, it could only beat Cal 0–2, via a second-half safety. It was after that match that Cal became considered a worthy opponent to the East Coast teams. The 1900 Big Game is associated with the Thanksgiving Day disaster. The match took place in San Francisco, with between 500 and 1,000 men watching the game from the rooftop of an operating glass factory next to the sold-out city stadium. During the game, more than 100 fans fell through the factory's roof with the majority falling onto the factory's massive, operational furnace. In total 22 men, mostly boys were killed, with others severely injured.