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.
Answer: John Quincy Adams is the 6th president.
Explanation:
The Sumerians invented the first writing system. People needed a way to keep track of business transactions, ownership rights, and government records as Sumerian towns grew into cities. Around 3300 BC, the Sumerians began to keep records on clay tablets with picture symbols.
Cuneiform writing was used to record a wide range of information, including temple activities, commerce, and trade. Cuneiform was also used to record stories, myths, and personal correspondence.
Cuneiform appears to have been invented by the Sumerians for the mundane purpose of keeping accounts and records of business transactions, but it eventually evolved into a full-fledged writing system used for everything from poetry and history to law codes and literature.
To know more about Cuneiform here
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