Answer the following question, with explanation first.
Indentured servitude appeared in the Americas in the 1620s and remained in use as late as 1917. The causes behind its decline are a contentious domain in economic history.\n\nAnswer this question based on the passage: when did indentured servitude end in the us?

as late as 1917
The relevant information is: Indentured servitude appeared in the Americas in the 1620s and remained in use as late as 1917.

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The answer is as late as 1917