Presidents' Day.

President Donald Trump @ Twitter. I'm sure whatever he's Tweeting, it's entertaining and triggering The Left.

History.com: Presidents' Day.

Originally established in 1885 in recognition of President George Washington, the holiday became popularly known as Presidents' Day after it was moved as part of 1971’s Uniform Monday Holiday Act[.]
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Did you know? Presidents' Day never falls on the actual birthday of any American president. Four chief executives—George Washington, William Henry Harrison, Abraham Lincoln and Ronald Reagan—were born in February, but their birthdays all come either too early or late to coincide with Presidents' Day, which is always celebrated on the third Monday of the month.