Invaded by Immigrants

What is the content of this essay?
This essay deals with the immigration in canada and whether or not it was a postive/negative influence in the formation of this country.
Canada being a relatively new country, as far as the history of the
world goes was built by immigration. Every single resident of North America can
trace his ancestry back to the cradle of life in Europe. Even Native Americans
found their way to the new world over a frozen ice pack, spreading out across
the land, weaving a rich culture and prospering. The Canada that we know today
began only in the last 200 years. …