Despite being thousands of times smaller than the USA, Wales has had plenty of influence on its history.
The Welsh were some of the very first settlers to go to America and plenty of presidents had a connection to Wales.
At least five of the signatories of the Declaration of Independence were Welsh, or of recent Welsh descent, and there have been at least eight US Presidents with Welsh ancestry, including Thomas Jefferson, Abraham Lincoln, John Adams and John Quincy Adams.
Even the street roof structure of the White House was made in Pontardawe in the late 19th Century.
Although many on both sides of the Atlantic won't know about the two countries strong connection, there is one permanent reminder at the Washington Monument.
Built in the 19th-Century, the 555ft tall structure was built to honour George Washington and was the tallest structure in the world when it was completed in 1884.
Starting in July 1848 the Washington National Monument Society invited states, cities and patriotic societies to contribute memorial stones.
The stones had to be durable, a "product of the state's soil", and measure four feet long, two feet high and 18 inches thick.
And one of the stones came all the way from a quarry near Swansea.
At the 240-foot level of the monument sits a stone which reads: "Fy Iaith, Fy Ngwlad, Fy Nghenedl, Cymry am byth / Our language, our country, our birthplace, Wales forever."
The stone was imported from a quarry near Swansea and donated by Welsh citizens living in New York.
The Cambrian, a magazine about Welsh and Celtic history, wrote in 1898 that a Daniel Jones came up with the idea.
They wrote that in 1834 Mr Jones helped create a Welsh national society in the US. The St David Society helped hundreds of "distressed Welshmen stranded" on their arrival to the country.
The Cambrian wrote: "It was through Mr Jones that the government permitted a stone to be placed in the Washington monument to represent the little principality.
"This stone was imported from a quarry near Swansea. It bears the following inscription: Fy iaith. Fy Ngwlad, Ky Nghenedl. Wales. Cymru am Byth!
"Mr Daniel L. Jones was a faithful, consistent and patriotic Welshman.”
The Welsh inclusion is one of 194 memorial stones on the inside of the hollow tower.
