Think of a big, beautiful, empty land with mountains, forests, lakes animals and fish, but no people. This was America 30,000 years ago. Around that time, the first people probably arrived in Alaska from Asia. They travelled south and after that, they brought workers became the North American Indians slaves from Africa. Large numbers and the Aztecs, Mayas and Incas and of immigrants continued to arrive other peoples of Central and South S from all over the world until the America. Later came the Inuit middle of the twentieth century. Eskimos) of Canada and the Arctie. The empty land was now full of But there are only a few of these early people, speaking different languages peoples in America today. and with different ideas. There are In the sixteenth century Europeans just three countries now in North started to come to America, and soon America: Canada, Mexico and the USA. But there were nearly several more. The United States of America was not always united. The 252 million people who ive in its fifty states are not all the same. So how was the USA born? How did it grow? And what sort of country is it n