1903: The Iroquois Theater Fire in Chicago, Illinois kills at least 600. Although the theater was advertised at completely fireproof, numerous deficiencies were present including a lack of sufficient exits, extinguishers, water connections, sprinklers or alarms.
1922: The Union of Soviet Socialist Republics (USSR) is formed.
2004: The República Cromañón nightclub fire in Buenos Aires, Argentina kills 194. The fire started when a pyrotechnic flare for the performing rock band ignited the flammable materials used in the club’s decorations. Four of the six exits were chained shut to prevent people from entering without paying.