<span>It would be "correlating" rocks of similar age in different regions.</span>
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.
<span>C. She faced down a mob of angry citizens and helped save Justinian's empire</span>
In 1830, they took the state of Georgia to court in a case that challenged Georgia's jurisdictional claims directly. In Cherokee Nation v. Georgia, the Cherokees sought an injunction against Georgia's attempts to implement its act of 1828 asserting sovereignty over Cherokee lands.
As being related to a Vietnam veteran, they were treated like lowest of the low. People believed the war was useless and a waste of American funds. Soldiers who came back had no respect what so ever. They were judged when wearing their uniform and called names. Most soldiers became antisocial due to their treatment.
