Answer:
1. Johannes Gutenberg was a German blacksmith known for inventing the mechanical movable type printing press. His printing press has been widely considered the most important invention of the modern era because it profoundly impacted the transmission of knowledge
2. Nationalism is a way of thinking that says that some groups of humans, such as ethnic groups, should be free to rule themselves. Nationalists think that the best way to make this happen and avoid control or oppression by others is for each group to have their own nation.
3. inquisition
4. Nikita Khrushchev and Mikhail Gorbachev both pursued reformist policies during their respective periods as head of the CPSU. Although their policies were very different in substance, the political problems they faced in prosecuting reform were quite similar. The discussion here focuses on the obstacles facing reform-minded Soviet leaders and the options available for overcoming them. Both Khrushchev and Gorbachev were dependent for their position and for the implementation of their policies on a party-state apparat whose interests lay in opposing radical reform and in limiting the leader's power. As a result both men were in a particularly weak position from which to pursue reformist policies.
Step-by-step explanation: