On December 20, 1999, Portuguese colonization had come to an end, giving up the last colony, Macao, china after 442 years of rule. As per Africa, in some parts peaceful treaties took place and in the others, there were wars that led to decolonization also the exodus of all Portuguese settlers. In South America, all the colonies which were invaded by the Portuguese came together under the rule of brazil and napoleon's men invaded the Portuguese, leaving them no choice but to decolonize Brazil.