Here are the matched terms to their corresponding civilizations:
- Bubonic Plague: d. Late Middle Ages Europe
- Neolithic Revolution: e. Greece Mesopotamia (though it's also relevant to many other early agricultural societies)
- Calligraphy: h. Muslim Empire
- Feudalism: b. Early Medieval Europe
- Democracy: e. Greece (specifically Ancient Greece)
Note that some terms can have broader applications, but this assignment reflects a common understanding.