One political similarity between Europe and South Asia from the period 400-1450 was that they both had the aristocracy which dominated the political systems, and provided order and unity among the population. Another similarity is that religious beliefs influenced power.
These areas are named triple junctions and can be found in several places across the world today. The separated margins of the continents evolve to form passive margins. Hess' theory was that new seafloor is formed when magma is forced upward toward the surface at a mid-ocean ridge.
They built universities and libraries.
