The USA was discovered by Christopher Columbus in 1492. United States of America is located in North America. It‘s the fourth largest country in the world. Capital city is Washington D. C. and largest city is New York City. USA has over 300 millions people and fifty states. The flag has thirteen stripes and a blue canton with fifty stars. Stripes represent thirteen British colonies and stars mean fifty states of the USA. The longest river is Mississipi and the highest mountain is Mt. McKinley. President of the USA is Donald Trump. Neighbors are Canada in the north, Atlantic Ocean in the west, Mexico in the south and Pacific Ocean in the east.