You're probably thinking I'm referring to the inauguration, right? While that is historic, that's not what I'm referring to.
Starting today and for the next 10 days, the dates are palindrome dates. Starting 1/20/21-1/29/21, the dates can be read the same forward and backward. Unless you live in the UK and you read year first.
In fact, today only is especially rare, because the FULL date is a palindrome: 1/20/2021. That won't happen again for a hundred years or so, 12/12/2121.
Share that fun fact with your friends.