The period saw major technological advances, including the adoption of gunpowder, the invention of vertical windmills, spectacles, mechanical clocks, and greatly improved water mills, building techniques (Gothic architecture, medieval castles), and agriculture in general (three-field crop rotation)
The correct answer would be letter C.
Along the <span> d) Appalachian mountains.</span><span />
Answer:
attacks from barbarian tribes
Explanation:
the movements of Germanic peoples which began before 200 bce and lasted until the early Middle Ages, destroying the Western Roman Empire in the process. Together with the migrations of the Slavs, these events were the formative elements of the distribution of peoples in modern Europe.
