Why is the Great Wall considered one of the most well-known symbols of China?

The great wall of china helped protect the land from outsiders. It also helped the army keep watch on intruders.

Explanation:

If you have ever seen the movie Mulan, at the very begining

the army is keeping watch on the wall and when the bad guy comes up the wall, the guards warn the other guards that there are intruders invading China.

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on this day in 1833, president andrew jackson announces that the government will no longer use the second bank of the united states, the country's national bank. a national bank had first been created by george washington and alexander hamilton in 1791 to serve as a central repository for federal fund