English colonists were looking for a new home, where they could support themselves (they had financial troubles back home) and maybe even become wealthy.
America was a good choice as it had a very small number of indigenous population, and northern America was not sucessfully claimed by Spain, so they were free to settle there and they decided to do so.
Continents are the main plates of dry land on the earth's surface. There are seven continents: North America, South America, Africa, Asia, Europe, Australia and Antarctica.
They are more free as they used to be affected by communism :)