Conversation so far:
What wars were the Powhatan involved in?
a fight broke out between the colonists and the Powhatan.
What was the fight about?
All of the English ashore were killed, including Ratcliffe, who was tortured by the women of the tribe.
Where they involved in any other wars?
During that next year, the tribe attacked and killed many Jamestown residents.
The residents fought back, but only killed twenty.
However.
Who won that war?
The residents fought back, but only killed twenty.

Question: When did they sign a treaty?
Self-contained rewrite: When did the Powhatan and the Jamestown residents sign a treaty?