Every nation is now represented by a flag, testament to Europe’s influence on the modern world as its empires expanded and ideas spread around the globe.

WAUBEKA, Wis. — Each June, the people of Waubeka venerate perhaps the nation’s most enduring symbol, celebrating Flag Day, a holiday that escapes the notice of many Americans. But this ...

The 13-star flag officially became the U.S. flag on June 14, 1777, and the date is celebrated every year in the United States as Flag Day. Though there is no conclusive proof, Francis Hopkinson, a ...