I know for sure Russia, I believe Poland...
The enslaved people in Sparta were called Helots.
They were actually the majority of the people in the land dominated by Sparta, according to Herodotus, as many as seven times more than the Spartans.
They worked primarily in agriculture.
The Helots were regularly killed by the Spartans.
It prohibits the government from issuing excessive bail, excessive fines or cruel and unusual punishments.
The attack was december 7, 1941
They were hoping that they would get freedom or at least gain some recognition and rights, which was something that they didn’t have, because a majority of them were enslaved and not treated equally.