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Arts & Culture
Mark Pennell sits at the helm of his time machine.Mark's Almanac is a 90-second time travel that highlights the world's history from the very serious to the sometimes sublime.

Mark's Almanac for December 24, 2019

On this date in 1812, the United States signed a major treaty with the United Kingdom. And in 1936, the use of radiation was used by doctors for the first time as a treatment for certain illnesses.