What was the Slave Trade Clause?

Article 1, Section 9, Clause 1, is one of a handful of provisions in the original Constitution related to slavery, though it does not use the word “slave.” This Clause prohibited the federal government from limiting the importation of “persons”

Explanation:

it might be to see if the person answering knows what they are talking about other than just saying, "its b hope this ! : )" because they could say it then get the wrong answer because they only answered for the points.