Conversation so far:
When did the French contact the Algonquins?
The Algonquin met Europeans when Samuel de Champlain came upon a party led by the Kitcisìpirini Chief Tessouat at Tadoussac, in eastern present-day Quebec, in the summer of 1603.
How did the French and Algonquins interact?
From 1603, some of the Algonquin allied with the French under Champlain.

Question: What else should I know about this period?
Self-contained rewrite: What else should I know about the French and Algonquins interactions?