On July 6, 1944, the Ringling Brothers Circus came to Hartford, Connecticut. During the afternoon show the main tent, packed with children and women, began to burn. The canvas tent, waterproofed with paraffin and kerosene, went up in a terrifying rush of flame. The performers, warned by the orchestra, escaped in time, but 168 of the hundreds of circus goers died in the ensuing inferno. Most of the victims were children. The Ringling Brothers began to make their tents out of flame-retardant material after the fire. In late January 1922, a winter storm dumped huge amounts of snow on Washington, D.C. Nonetheless, 400 people struggled through the lousy weather to attend a concert at the Knickerbocker Theatre. Just as the concert began, the north wall cracked open and the roof collapsed. 95 people were killed and at least 100 injured. The “Knickerbocker Storm,” is still on record as the worst weather event in Washington's history.