Original: When Americans and Canadians of European descent began to study Iroquois customs in the 18th and 19th centuries, they observed that women assumed a position in Iroquois society roughly equal in power to that of the men.
Simplified: When Americans and Canadians of European descent began to study Iroquois customs in the 18th and 19th centuries, they found that women assumed a position in Iroquois society that was about equal in power to that of the men.