Industrial revolution led to economic expansion, leading to need for labour and resulting in westward expansion and slavery. 1808, slavery was abolished in north but it wasn"t affected because they were quite industrialized. 1861, supply of 90% of european cotton came from 50% of us exports south) 95% of blacks in the south represented 1/3 of southern population. Booker t washington (1856-1915)- black from southern states: his political activism was to seek accommodation of black in the south with a black government people) W. e. b dubois (1868-1963)- black from the north (massachusetts: he realized that the context of the emancipation was not just an american issue, but a black issue (affected africa too) Encyclopedia africana) he died in ghana because he wasn"t allowed to come back to america. It was the first free african nation too. Alfred mahan: by the end of the civil war, there was only 2 oceans navy left, colonial bases, power projection.