The right answer for this question is the enslaved African Americans. This was a form of resistance against slavery, where slaves became less efficient on purpose in order to rebel against their masters a lot.
Introduction
(What place you are going to be talking about)
Body 1 (Geography)
Body 2 (Economy)
Body 3 (Culture)
Conclusion
(Just sum it up)
They were the best Ship Builders and best Sailors of Mesopotamia. They made the first see through glass.