It is the anniversary of the adoption of the U.S. Declaration of Independence by the Second Continental Congress on July 4, 1776. Celebrating the day became common only after the War of 1812.

Ah, yes, our favorite 4th of July tradition: Mark Zuckerberg's America-loving post. This year, he's back surfing while waving the American Flag, sipping a can of beer, and wearing a tux — oh ...