Urban area protected by walls villages outside of the walls allied with the urban area citizens are often culturally similar most common in Ancient or Classical eras Which demographic concept is being described? A) empire B) city-state C) nation-state D) civilization

In 1816, john c. calhoun proposed that: a. that the federal government aid in the construction of roads and canals to improve transportation to and from the west b. the united states should end slavery. c. the united states should increasing the size of the navy and invade central america. d. the united states should annex hawaii