Important Events on December 30th In History: 1905: Former Governor of Idaho Frank Steunenberg was assassinated. 1916: The last coronation in Hungary is performed for King Charles IV and Queen Zita. 1922: The (USSR) Union of Soviet Socialist Republics was formed. 1927: The first subway line in Asia, the Ginza Line, opens in Tokyo, Japan. 1936: The General Motors Flint…