peaceful relationship between the traders/explorers and the Bari came to an end when a Turkish trader, without provocation, fired his guns into a crowd of Bari at Gondokoro. Accordingly, the Bari mounted a counterattack that was devastating to both sides. Subsequent to this the Bari became defensive and less friendly, and the traders (mostly Arabs, and Turks) resorted to violent means to procure ivory tusks, but also started taking people (young men and women) as slaves. Girls were raped, or taken as wives by force. Some of the merchants even built fortified depots near Gondokoro where people were kept awaiting shipment down the White Nile. Diaries of European missionaries in the region, indicate that in the market of Cairo (Egypt), the number of slaves to be sold to Europe from the White Nile area increased from 6,000 between 1858 and 1862, to approximately 12,000-15,000 per annum. These numbers reflected mostly Bari, Dinka and Mundari; but also included people of other ethnic groups neighboring the Bari, and beyond were hunting for elephant tusks was intense during that time. By 1863 when Sir Samuel White Baker arrived at Gondokoro, also on an expedition to discover the sources of the Nile, boats of buccaneers (even one flying an American flag) were anchoring at Gondokoro, with the sole purpose of picking up slaves to the new world. By 1865 about 3000 slaves at any one time could be found waiting at Gondokoro to be carried down the Nile. Baker returned in 1869 with the express purpose of stamping out the slave trade. By this time, the Bari people and land were already devastated. Bari folklore tells us of how long ago the land flanking the Nile was full of strings of villages spread out to the horizon, as far as the eye could see. Baker concurs, in his book "Ismailia" (1874), that this had been so when he first visited the area. However he describes how, by the time of his next expedition, the slave traders had reduced the Bari villages to a miserable few. Neither could he obtain co-operation from the Bari, who had been persuaded by Abou Saood, the chief slaver of Agad and Company, who had a government monopoly for trade and slaving, that it was in their best interests to help the slavers and hinder Baker. The Bari were ravaged in their encounter with Baker and his team. Ever since