DECEMBER 30
1922:Vladimir I. Lenin proclaims the existence of the Union of Soviet Socialist Republics at the First All-Union Congress of Soviets, transforming the Russian Empire into the communist Soviet Union with the confederation of Russia, Belarus, Ukraine and Transcaucasia.
1986: The British government announces plans to phase out the use of more than 200 canaries in coal mines, replacing the birds that had alerted miners to toxic underground gases since 1911 with modern carbon monoxide detectors.
1986: The British government announces plans to phase out the use of more than 200 canaries in coal mines, replacing the birds that had alerted miners to toxic underground gases since 1911 with modern carbon monoxide detectors.
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