Meeting The Queen
The tradition of the POTUS meeting Queen Elizabeth II began with President Harry Truman, according to Time. While Elizabeth wasn’t technically the queen yet, she did visit Washington D.C. on behalf of her father, King George IV.

Meeting The Queen
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Cinco de Mayo
For the past 16 years or so, the White House has celebrated the Mexican holiday, Cinco de Myo. The holiday marks Mexico’s 1862 victory over invading French Emporer Napoleon III in the Battle of Puebla.

Cinco de Mayo