Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page History of slavery:

"

Slavery has existed, in one form or another, throughout the whole of human history. So, too, have movements to free large or distinct groups of slaves. However, abolitionism should be distinguished from efforts to help a particular group of slaves, or to restrict one practice, such as the slave trade.[citation needed]