Which technological advance allowed cities to expand outward?

He three-fifths compromise, which was made at the constitutional convention, represented differences of opinions over which issues?

Historians have recently discovered a historical journal published in the early twentieth century. the journal contains facts based on original sources about the downfall of the early byzantium empire. historians consider this long-lost journal to be a breakthrough in their understanding of the byzantium empire. based on this information, the journal is a source.

Which concept is plato expressing in the excerpt below? when men have both done and suffered tyranny, and have had experience of both . . they think that they had better agree among themselves to have neither. . —plato, the republic: book ii