An oath (promise) taken by multiple people, where the takers would draw blood in a 'ceremonious' fashion
Answer:
Mexico
Explanation:
The Aztecs, who probably originated as a nomadic tribe in northern Mexico, arrived in Mesoamerica around the beginning of the 13th century
Equal people should be treated fairly with equal rights.
Limpopo River is a Southern African River and it does empty into the Indian Ocean: the correct anwer.
Orange River flows westward, Okavango into a Swamp. - they don't empty into the Indian Ocean