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The start of the slave trade
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Complex sugar is the 1st planted in the portuguese osland of madiera and for the 1st time african slaves are put to work on the sugar plantation.
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Issues romanus pontifx, a bill granting the protuguese a perpetual monoply in trade with africa never the less spanish traders begin to bring slaves from africa to spain
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Pope Nicholas V issues Dum Diversas, a bullauthorsing the portuguese to reduce any non- christains to the states of slaves
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portugues slavetraders start to opperate in seville
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the Portugues colony on the cape verde islands is founded an important way-station in the slave trade
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Desoite Papal opposiion spanish merchants begin to trade in large numbers of slaves in the 1470s
