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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 October 9, 2019

On this date in 1936 the Hoover Dam was utilized for the first time to generate energy. And in 1947, after more than 10 years of research, AT&T debuted a new way to reach someone.