Which four of these developments were made under mongol rule during the pax mongolica? •the extension of the grand canal in china
•the spread of Christianity
•the trade was encouraged with foreign states because they offered hospitality to foreign traders at Chinese ports.
•the invention of new medicines
•the establishment of a postal system
•there was development of a commerce in the region along the Silk Road.

the federalist party which advocated strong centralization dominated the united states government till 1800. so 1800 election transformed the power from one party to another party for the first time and was thus a turning point in american history. so jefferson called it "revolution of 1800".

explanation:

the cost of college has risen faster than inflation for many years.

the high price of student services and administration are two reasons for the rapid increase in cost.

southwest asia

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