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 Slavery in antiquity:

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

"

On the other hand, much of the wealth of Athens came from its silver mines at Laurion, where slaves, working in extremely poor conditions, produced the greatest part of the silver (although recent excavations seem to suggest the presence of free workers at Laurion).[citation needed] During the Peloponnesian War between Athens and Sparta, twenty thousand Athenian slaves, including both mine-workers and artisans, escaped to the Spartans when their army camped at Decelea in 413 BC.[citation needed]