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In page April 12:

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  • 1917 – World War I: Canadian forces successfully complete the taking of Vimy Ridge from the Germans.[1]
  • 1927 – Shanghai massacre of 1927: Chiang Kai-shek orders the Chinese Communist Party members executed in Shanghai, ending the First United Front.[citation needed]
  • 1927 – Rocksprings, Texas is hit by an F5 tornado that destroys 235 of the 247 buildings in the town, kills 72 townspeople, and injures 205; third deadliest tornado in Texas history.[2]