The thirteen colonies....... English colonies....... allowed the institution of slavery just like their mother country.
This particular discussion started with Hawk220's oversimplification of American attitudes towards slavery and mistreatment of the American Indian.
I merely added historical background, pointing out that slavery was created and institutionalized LONG before those 13 colonies ever became the United States. It was abolished here a short 25 years after it was abolished in the enlightened Motherland at a very great cost through a Civil War. As McGroin pointed out it was, primarily, a peculiarly Southern institution. Research will show that of all the former colonies, the Southern ones clung to their overseas roots in society, manner, dress, habits, etc., far longer than the Northern ones.
As for the genocide of the Native American, those peoples were being cheated, lied to, stolen from and "ethnically cleansed" almost from the day Columbus landed. Research will again show that the overwhelmingly huge majority, a majority measured in tens of millions throughout North and South American, had already been either displaced or "cleansed" long before 1776.
These are simply historical facts. Those of you that would cast them as attacks on a particular country are showing your bias.
Particularly given the comments made by some of people in this thread that excuse their remarks about the US so diffidently and easily. Apparently you laundry men don't like to see the dirty laundry of YOUR homeland aired out on the neighborhood line either, eh?