Why was the country-wide spread of a postal system and paper currency important to China? Select one:
a. to spread the image of the emperor through stamps and coinage
b. to give jobs to Chinese postal workers and bankers
c. to keep news and wealth flowing throughout the country
d. to unite the Chinese people

D. to unite the Chinese people

Explanation:

Before the creation of paper currency, Chinese people conducted their business through a barter system. To obtain a certain good from another people, a person need to exchange with another good that he own.

This system is really problematic because different regions in China used different methods to give valuation toward a certain product. In the end, many people did not want to trade with people who lived in another region because they feared that the goods that they obtain wouldn't have a fair value than they've exchanged.

The creation of paper currency made the valuation of a product became universally accepted in all region.

This made people from different regions interact with each other more and gradually united Chinese people simply through social interactions between them.

on this day in 1939, in response to hitler’s invasion of poland, britain and france, both allies of the overrun nation declare war on germany.

the first casualty of that declaration was not german—but the british ocean liner athenia, which was sunk by a german u-30 submarine that had assumed the liner was armed and belligerent. there were more than 1,100 passengers on board, 112 of whom lost their lives. of those, 28 were americans, but president roosevelt was unfazed by the tragedy, declaring that no one was to “thoughtlessly or falsely talk of america sending its armies to european fields.” the united states would remain neutral.

as for britain’s response, it was initially no more than the dropping of anti-nazi propaganda leaflets—13 tons of them—over germany. they would begin bombing german ships on september 4, suffering significant losses. they were also working under orders not to harm german civilians. the german military, of course, had no such restrictions. france would begin an offensive against germany’s western border two weeks later. their effort was weakened by a narrow 90-mile window leading to the german front, enclosed by the borders of luxembourg and belgium—both neutral countries. the germans mined the passage, stalling the french offensive.