What development allowed hunter/gatherer groups of humans to build large cities?

It would be the development in agricultural knowledge/technology

Development in agriculture enable hunter/gatherer society to shift their behavior. Before this, they had to keep moving from one place to another in order to seek food to live.

After the development in agricultural knowledge/technology, the society now can stay in one exact place for a long period of time and relied on agricultural product as their main source food.

After living in one same place for a long time, the needs to build things to accommodate their living start to arise. They start to built several things and repeat the process every year. In the end, large cities were developed from the initially small hunter/gatherer society.

andrew jackson summary: andrew jackson was the seventh president of the united states. 1767, to elizabeth jackson three weeks after the death of his father, andrew. throughout the 1790s, jackson lay the foundation for the state of washington elite and jackson's own cabinet members socially ostracized

explanation:

about 136,000 results (0.72 seconds)