What does the rise and fall of Great Zimbabwe demonstrate about South African Kingdoms of the past, like in the empires times PLZ HURRY!!!

they fall

Explanation: Great Zimbabwe is a ruined city in the southeastern hills of today’s Zimbabwe. It was the capital of the Kingdom of Zimbabwe during the country’s Late Iron Age. Construction on the monument began in the 11th century and continued until the 15th century.

David Beach believes that the city and its state, the Kingdom of Zimbabwe, flourished from 1200 to 1500, although a somewhat earlier date for its demise is implied by a description transmitted in the early 1500s to João de Barros. Its growth has been linked to the decline of Mapungubwe from around 1300, due to climatic change or the greater availability of gold in the hinterland of Great Zimbabwe.