William Dawes alerted colonial minutemen in Massachusetts at the approach of British army troops prior to the Battles of Lexington and Concord.
The Oregon trail and the Santa Fe trail.
"The importance in American history of these two covered-wagon trails, the Oregon and the Santa Fe, can hardly be overemphsized. Thanks to them , eastern America penetrated - and ultimately claimed- the West. "
Canada has lot's of immigrants from all over the world. Caucasians, Arabs, Africans, Asians, ...
Your question ain't that clear but ill try.
Question:
what role did disease play in the Spanish conquest of the Americas?
Answer:
The Americas was a land inhabited by natives with no contact to Europeans until the conquest of Europeans. Europeans have brought guns, religion, and accidentally brought diseases as well. The Native Americans had no immunity to things like "small pox" and it wiped out large amounts of their populations at a time.
Hope this helps :D '_')b