As of the year 2014, the United States of America was 238 years old. The nation is said to have been founded on the July 4,1776.
The US was founded following a secret vote for independence by the congress on the 2nd day of July, and a public declaration of independence from the British Empire on the fourth day of July.
Leading up to the declaration, the Northern colonies had been embroiled in a seven year Civil War against British forces in agitation of freedom. Independence day is celebrated every year, with festivities including sporting events, cultural shows and family fun fairs.