Flags have more history packed into them than most people realize. Here's some of what's worth knowing while you fly yours.
01
The American Flag Has Been Redesigned 27 Times
Every time a new state joined the union, a star was added to reflect it. The 50-star version flying today has been in use since 1960 - the longest any single American flag design has lasted.
02
Denmark Has the Oldest National Flag Design Still in Use
The Dannebrog - red with a white cross, has been Denmark's national flag since the 13th century, making it the oldest continuously used national flag in the world.
03
Nepal Is the Only Country With a Non-Rectangular Flag
Every other national flag in the world is either square or rectangular. Nepal's flag is a double pennant shape - two stacked triangles, and has looked that way for centuries.
04
The Current American Flag Design Started as a High School Project
In 1958, a 17-year-old Ohio student named Bob Heft redesigned the flag for a class project and got a B-minus for it. Two years later, President Eisenhower called to say his design had been chosen - and his teacher changed the grade to an A.
05
One Flag Has a Gun on It
Mozambique's national flag features an AK-47 with a bayonet attached, crossed with a hoe over an open book. It's the only national flag in the world with a modern assault rifle on it.
06
The UK Flag Is Actually Three Flags in One
The Union Jack combines the crosses of St. George (England), St. Andrew (Scotland), and St. Patrick (Ireland). Wales is notably absent - its dragon flag was not included when the Union Jack was designed in 1801.
07
Flying Any Flag Upside Down Is an Official Distress Signal
The tradition goes back to 17th-century sailors who would invert their flag to signal fires, attacks, or a sinking ship. It's still recognized today as a universal sign of extreme danger or emergency.
08
The Maple Leaf Has Only Been on Canada's Flag Since 1965
Before that, Canada flew a flag featuring the British Union Jack. The single red maple leaf design was adopted on February 15, 1965 after years of national debate over what the country's flag should represent.
09
Six American Flags Are Currently on the Moon
NASA planted a flag during each of the six successful Apollo lunar landings. They were specially engineered with a horizontal rod along the top so they'd appear to fly without wind in the moon's atmosphere-free environment.
10
Bhutan's Flag Has a Dragon on It
Bhutan's national flag features a white dragon clutching jewels across a split orange and yellow background. The dragon represents the country's name in Dzongkha - Druk Yul, which translates to "Land of the Thunder Dragon."
11
One Flag Literally Has Another Country's Flag Inside It
Hawaii's state flag contains the British Union Jack in the top left corner - making it the only U.S. state flag to feature a foreign nation's flag. It's a nod to the close trade relationship Hawaii had with Britain before becoming a state.
12
The Olympic Flag Was Designed to Include Every Nation's Colors
The five interlocking rings on the Olympic flag - blue, yellow, black, green, and red on white, were specifically chosen because at the time of its 1913 design, every national flag in the world contained at least one of those six colors.
13
One Country's Flag Glows in the Dark
Antigua and Barbuda's flag features a rising sun design, and the official flag specifications include the requirement that the gold color used should be bright enough to be visible and vibrant even in low light conditions.
14
Spain's Flag Has No Official Shade of Red or Yellow
Despite having one of the most recognizable flags in the world, Spain has never officially standardized the exact shades of red and yellow used on it. Different government institutions use slightly different tones.
15
Greece's Flag Has 9 Stripes, Not 10
The blue and white stripes on the Greek flag aren't random - there are exactly 9 of them, representing the 9 syllables in the Greek phrase meaning "Freedom or Death," the rallying cry of the Greek War of Independence.