What was the United State's first federal cultural institution? Hint: It was rather bookish. Who coached the Celtics during their record eight consecutive NBA championships? We've got your answers to these questions along with more history from this day in today's episode.

If you've ever watched a video online, today is a significant day in online video history. Today is also the anniversary of one of the most famous faux-pas in soft drink history. Learn these historical tidbits and more in today's On This Day.

US coinage, TV memorabilia, major league baseball, and a famous country singer/songwriter/musician all received mention in today's episode. Listen to get an ear full of historical footnotes for April 22, 2019.

Today is an important day in the history of Texas. This is also the day a famous photograph was published, and the Chicago Bulls reached a significant milestone. Find out what we're talking about when you listen to On This Day for April 21, 2019.

Today's footnotes include a moon landing, a ballpark opening, and more. Today's episode has your historical footnotes for April 20, 2019. 

On this day in the 18th century, fighting broke out in Lexington, Massachusetts. Know why? Find out in today's episode. Plus, for the first time ever, I have a special co-host joining me.