It was on this date in 1893 that the world got its first glimpse of a Ferris wheel. It was the centerpiece of the World's Columbian Exposition in Chicago. And it was on this date in 1975 that a historic concert called MidSummer Music took place at Wembley Stadium. Elton John was the headliner.
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 June 21, 2021
![The Ferris Wheel at the World's Columbian Exposition in Chicago, 1893.](https://npr.brightspotcdn.com/dims4/default/51bf453/2147483647/strip/true/crop/768x720+0+0/resize/880x825!/quality/90/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%2F66%2Fd8%2F5214403542978912505dc1a4dd41%2Fservice-pnp-ds-14100-14185v.jpg)
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