Answer:
Some asked Solon to remain in power as a tyrant to explain and perhaps change what he had decreed. But he believed that it was now up to the Athenians, not him, to make the new system work. Thus, Solon reinforced his idea about citizen responsibility. He then left Athens and traveled outside Greece for 10 years.
Explanation:
Starting a civil war to take power from the senate
Hmm, there were several triggering events that promoted westward expansion of the United States. Victory in war over Mexico (1848) gave the US new lands in the west. A treaty with Britain (also in 1848) gave the US sole possession of some formerly disputed Oregon territory lands also. Plus, in 1848, gold was discovered in California (land newly in US possession after that Mexican war treaty), so that prodded westward expansion too. Perhaps those are the initial "turning points" you're looking for. The completion of the Transcontinental Railroad in 1869 sure helped the process as it was underway, as well.
