Answer;
The open door policy
Explanation;
Us secretary of state John Hay established the Open door policy which opened China's ports to European trade.
Open Door policy was a statement of principles initiated by the United States in 1899 and 1900 for the protection of equal privileges among countries trading with China and support of Chinese territorial and administrative integrity. John Hay, the secretary of state proposed this policy under president McKinley towards China for all countries.
There were over 77 printing presses exstablished
A. Astronomers predicted eclipses and developed a 365-day calendar.
(CORRECT)
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B. The city of Machu Picchu was probably a retreat for nobility.
(INCORRECT)
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C. Scribes painted books and kept records of taxes and territories conquered.
(INCORRECT)
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D. Emperors communicated using runners from the capital city of Cuzco.
(CORRECT)
Everything except camping and every American owns a car
The United States' policy of containment wasn't just military, it was ideological. Back then, we pointed out the differences between Soviet Communism and Communism around the world to weaken the power of its rhetoric, and additionally we appeared to be more successful and had a better standard of living than communists. Today, we can point out the difference between Islamic terrorism and moderate Islam, to degrade support for Islamic terrorism and make it defeat itself by containing enabling states (as Islamic terrorism is supported by enabling states) perhaps via economic incentives,and stopping our support of dictatorships, winning over those in danger of becoming Islamic terrorists. We also built up a system of allies with our containment policy regarding the Soviet Union, which helped isolate the Soviet Union. We can build up support among allies to support us in isolating states that are enablers of Islamic terrorism as well.