The Portuguese Empire
Beginning in 1415, the Portuguese Empire stretched from Europe, Africa, India, and all the way to Japan and Brazil. Under their long colonial rule, they exploited the local inhabitants, raided African villages, and was a huge contributor to the African slave trade. At the end of their reign in 1961, the Angolan laborers revolted, resulting in a brutal fourteen-year war which included a massacre of 500 men, women, and children by the hands of Portuguese soldiers. In 1999, the Portuguese Empire was dissolved.
I'm not sure where or how, izismile gets his facts... well, not facts really, leftist propaganda more like it. As in, Confederates raping "millions" of African-American women and, too, the items you mention as well as many others. Columbus a 'conquistador'... seriously.
Post entertainment, entertaining pictures, etc., not skewed takes on history in support of a Howard Zinn view of the world.