Answer:
The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, nationalism) was the assassination of Archduke Franz Ferdinand of Austria-Hungary. In June 1914, a Serbian-nationalist terrorist group called the Black Hand sent groups to assassinate the Archduke.
Answer:
Kievan was a loose federation of East Slavic and Finno-Ugric peoples in Europe from the late 9th to the mid-13th century,under the reign of the Varangian Rurik dynasty The modern nations of Belarus, Russia, and Ukraine all claim Kievan Rus' as their cultural ancestors with Belarus and Russia deriving their names from it. Russia was ruled by the Rurikid dynasty until the 16th century.
Explanation:
People in the south used slaves because their economy was focussed on things like cash crops (tobacco, cotton, etc.) These crops required a lot of work so farmers and plantation owners could not do it by themselves. So by using enslave persons they could harvest more crops, sell more, make more money, and in return boost the southern economy.
