The three things that helped the Tang Dynasty was:
Silk road, trading colonies and shipbuilind.
The silk road was a trading routes connecting the East and West.
The trading colonies dealt with cotton, rice, tobacco, indigo (dye), lumber, furs, and farm products; that is what most of the people traded back in the tang dynasty. They will trade these things for food, clothing, books, medicine and sometime homes.
The shipbuilding made a huge part because the people would build ships to trade things to different lands. Usually when they trade more things to different lands they'll get more money.
Hope this helped :)
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Answer:
D)the publication of the Emancipation Proclamation is the answer I'm not sure tho
The correct answer is People have different opinions on who should have power to control issues<span>.
Even though the constitution is flexible, there are some issues that arise in our current society that are debated over by state and federal governments. Those in favor of stronger state governments argue that the state representatives have a better idea of what their citizens need. On the other hand, people in favor of have a stronger federal government argue that their needs to be consistency and continuity among the states in the US. These two sides constantly battle over political power.</span>
I'd say the combustion engine, even though it was toyed with in the mid-west during the cowboy era, it wasn't until after the Civil War in which it was a fully effective gasoline powered engine.