The Pilgrims······in what later became known as Plymouth, Massachusetts. What does ''in what'' mean? The context is: The Pilgrims were religious dissidents who fled oppression in England. They went first to the Netherlands. Then they left that country to establish a colony in North America. The Pilgrims landed in 1620 in what later became known as Plymouth, Massachusetts. What does " in what" mean in the last sentence? What is the usage of "in what"? Could you help me slove this problem? Thank you!