It was used to stop all attack from outsiders
Answer:
907-960. This was a time era of political disturbance in 10th century imperial China. This was between the Tang an Song dynasties.
Explanation:
Exemplified and failed expansionism
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The United States has almost doubled their territories in the period of around fifty years.
The proportions of the USA not only went up, they also went up in bureaucratic problems synonymous with territorial development in two different purchases, one of Thomas Jefferson in 1803, and the other of James K. Polk in 1848. Still a developing nation, Jefferson encountered a host of challenges in administering such a huge expanse of territory, but deftly transformed the Louisiana Acquisition into one of greatest achievements of the United States.
Rather, Polk gained his territories by means of deviants and refused to see the repercussions of brutal civil war that ultimately would engulf the Union. Two examples of leadership are seen in the United States ' great expansion, Thomas Jefferson's masterful, brave conduct, as opposed to James K. Polk's reckless and hasty behavior.
Answer:
While many city-states, kingdoms, and empires competed with one another for power and prestige, Mesoamerica can be said to have had five major civilizations: the Olmec, Teotihuacan, the Toltec, the Mexica and the Maya.
Explanation:
