Ireally need this answer!

why was portugal eager to invest in expeditions to africa?

to venture beyond africa and find a trade route to asia

to break the venetian and arab asian-trade monopoly before spain

to establish ports along african coasts and spread christianity

to sustain their plantations through slave trade with africa

- "a new era of american politics began with jackson's election in 1828, but it also completed a grand social experiment begun by the american revolution. nevertheless, jacksonian democracy represented a provocative blending of the best and worst qualities of american society."

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nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.