What activity was begun by the portuguese, lasted for more than four hundred years, and was harmful for africa?

it for the workers lik if you have a job thats what its for

explanation:

the democratic and republican parties

explanation:

no options provided, here,but the answer to this question is often: a historian cites a japanese newspaper article published a year after the end of world war ii in order to draw conclusions about the effect of the war on the japanese economy.

clearly from the answer, the historian alludes to historical sources,and records to aid in analyzing and drawing conclusion on the effect of the war on the economy of japan.

this is a good question! i'll do some research and come back when i have the answer!