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 July 20, 2021
It was on this date in 1944 that Franklin D. Roosevelt was nominated for his fourth term as president. And on that same day, Operation Valkyrie failed. The operation intended to kill Adolf Hitler in order to make peace with the Allies.