Subject: Re: What I'm Doing for the 250th
proposes that american revolution was due to colonists' expansion desires.

That's not a new theory. That was presented as one of the causes of the American Revolution in both my high school and 100 level US History classes over 50 years ago. The British promised Native Americans that the colonists would not expand into their territory after the 7 Years War. The colonists wanted the crown to provide troops to protect them as they pushed westward.