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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 April 6, 2021

Picture of U.S. Soldiers in World War I.
A pack Inspection of 139th Regiment Infantry, American Army Camp.

It was on this date in 1917 that the United States entered World War I. And it was on this date in 1930 that Twinkies were invented.