July 4 fireworks have been around since 1777. See which other US traditions have stood the test of time.

Fireworks have been a tradition in the US since 1777.

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The United States is about to celebrate its 250th birthday, but some of its most famous traditions are even older.Thanksgiving has been celebrated since 1621 — nearly 400 years — while the Fourth of July has been celebrated since 1777, predating the swearing in of the nation's first president by over a decade. Some of America's other oldest traditions are a bit more unusual. Placing pickle-shaped ornaments on Christmas trees, for example, has been a tradition for some households since the late 1800s.See 24 of America's oldest traditions that are still celebrated today.

The first Thanksgiving was celebrated in 1621, over 150 years before the Revolutionary War.

Thanksgiving was made a national holiday in 1863.