The emergence of the United States in the second half of the 18th century played an important role in determining the history of British North America. What were the key developments and events created by the actions and presence of the United States that shaped Canada’s history before Confederation in 1867?

The emergence of the United States in the second half of the 18th century played an important role in determining the history of British North America. What were the key developments and events created by the actions and presence of the United States that shaped Canada’s history before Confederation in 1867?