...As late as the 1870s, only 10% of the continent was under direct European control, with Algeria held by France, the Cape Colony and Natal (both in modern South Africa) by Britain, and Angola by Portugal. And yet by 1900, European nations had added almost 10 million square miles of Africa- one-fifth of the land mass of the globe to their overseas colonial possessions. Europeans ruled more than 90% of the African continent... -Saul David, "Slavery and the 'Scramble for Africa,'"

BBC British History in Depth

Which event most directly influenced the change referred to in this passage

"august 19th (1864)- how they quarreled and wrangled among themselves- alabama and mississippi, all were loud for joe johnston, save and except the long-haired, one-armed hero, who cried at the top of his voice: "oh! you all want to be kept in trenches and to go on retreating, eh? " "oh, if we had had a leader, such as stonewall (jackson), this war would have been over long ago! what we want is a leader! " shouted a (wounded man). they were awfully smashed-up, objects of misery, wounded, maimed, diseased. i was really upset, and came home ill. this kind of thing unnerves me quite." mary chestnut, a diary from dixie this entry from the diary of mary chestnut illustrates a) the lack of medical technology possessed by the confederacy. b) the military superiority of southern troops in the civil war. c) the effects of the emancipation proclamation on the southern economy and society. d) the loss of morale and confidence by the confederacy towards the end of the civil war.