Answer:
Between the 1200 and 1450, the Sub-Saharan African region was thriving with trade.
Powerful Kingdoms such as Aksum existed in modern day Ethiopia and Sudan while other kingdoms Da'amat further south-west.
While the period was generally known for powerful Empires in Asia and the Middle East, the Sub Saharan countries were able to develop thriving trading business that included salt, agriculture products, salves etc.
Their biggest achievement was of maintaining sophisticated trading links between one another and minimal conflict.
British North America focouses on the peaceful alliance between north and South America
This document shows in many ways how ineffective that Articles of Confederation were in controlling many aspects of American life, especially these types of uprisings.