The Portuguese brought firearms and many other technological advances, as well as a new religion (Christianity); in return, the King of the Congo offered plenty of slaves, ivory, and minerals.
葡萄牙人帶來了槍支和其他許多技術進步，以及一個新的宗教（基督教）;作為回報，剛果國王提供充沛的奴隸，象牙和礦物質。