I learn a lot from my morning email from Garrison Keillor, The Writer's Almanac.
He tells me this is the 230th anniversary of the day on which the US flag became official. Before we had a constitution we had a flag, which had only 13 stars in 1777. And so we celebrate June 14th as Flag Day.
It's also the anniversary of the day the Germans marched into Paris in 1940, separating Rick and Ilsa until that night she walked into his gin joint in Casablanca a year or so later.
And it's the anniversary of UNIVAC, the first commercially produced electronic digital computer. It weighed 8 tons, had 5,000 vacuum tubes, cost $250,000, and was so big you could walk inside it. But it couldn't do the calculations I can perform today on my cell phone.
UNIVAC was the younger sister of ENIAC (see photo), which was created in 1946 and parts of which are at the Smithsonian in Washington, DC. If you haven't seen it, it's worth the trip.