Пять предложений про америку на английском

1) USA is a young country.
2) The capital of the United States is D.C.Washington.
3) New York City had name - New Amsterdam
4) NEw York City was the capital of the USA, but only one year
5) There are many pop-stars from Hollywood, state California
6) Only in US people celebrate Thanksgiving and Memorial Day.
7) In fact, people call the USA the "New World"