From Ireland's national symbol to its average beer consumption, get the facts on the Emerald Isle.

FACT CHECK: We strive for accuracy and fairness. But if you see something that doesn't look right, click here to contact us! HISTORY reviews and updates its content regularly to ensure it is complete and accurate.

RELATED CONTENT

Did you know that the Hoover Dam supplies electricity to more than 20 million people? Get all the facts on this marvel of engineering.

It has become the site and symbol of the battle for Texan independence, but there is much more to the story. Find out why Americans will always remember the Alamo.

Ever wonder how many miles it is from the North Pole to the South Pole? Take a journey to the northernmost point on earth to uncover this and other facts and figures of the Far North.

How many steps are there to the crown of the Statue of Liberty? Find out that and other facts and figures about America's most recognizable symbol of freedom.

Known as the “Flying Fortress,” the B-17 was the backbone of the United States’ aerial forces during World War II. Get all the facts and figures.

The UH-1 "Huey" helicopter became a symbol of U.S. combat forces in Vietnam.