On this date in 1923, a patent was issued that changed the landscape of driving forever. And in 1888, a jeweler developed an item that forever changed how working hours are tracked. Find out what it was on today's edition of Mark's Almanac.
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.