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.
Yes it is possible because there are records that show that the Mayas were obsessed with war.
The political situation following the decline of the Roman Empire was not particularly envy-inducing. The reason for this was that Europe had no centralized government and with that there were a mixture of tribes where each fought for their right to rule over the best areas in Europe - D.
Answer:
C) The risk to succeed at a profit is worth it.
Explanation:
C)they did not live in cities
D) they did not know how to read