What kind of people was the American nation formed from?

The population of the United States was formed for the most part from emigrants. At the first stage, when the territories were still colonies of England, the British, Scots and Germans came. Then, in the 19th century, population growth came at the expense of the Irish, the British and the inhabitants of the German states. In the south, up to the middle of the 19th century, there was an increase at the expense of slaves from Africa. In the west at this time there was immigration from Asian countries, primarily from China. At the beginning of the 20th century, the influx of Italians, Germans and residents of the Russian Empire increased especially strongly. Throughout most of the 20th century, immigration has been happening from all over the world, but not in such large waves.