The stool is a ceremonial object of the Taino people.

Evidence

This object is a stool from the Caribbean, from what is now the Dominican Republic. … It too tells a rich story – in this case of the Taino people, who lived in the Caribbean islands before the arrival of Christopher Columbus. — Neil MacGregor, A History of the World in 100 Objects, 1012

Categorization

• corroborated: 2 independent passages support this claim — Neil MacGregor, A History of the World in 100 Objects, 1012