How did China use paper making, gunpowder, and printing techniques to help develop wealth and prosperity?

The invention of paper greatly helped the spread of literature and literacy, making books more convenient to use and cheaper. ... Paper was so highly valued in ancient China that it was used to pay tribute and taxes to the state during the Tang dynasty (618-907 CE).

Explanation:

When gunpowder was used to create personal handguns and rifles, a new type of soldier was created: infantry. ... 850, Chinese alchemists instead discovered gunpowder. Their explosive invention would become the basis for almost every weapon used in war from that point on, from fiery arrows to rifles, cannons and grenades.

The development of printing allowed Chinese officials to make important documents. It helped in military terms and lots of others. Also during 930 to 940 the Chinese were depressed because of war and poverty., so when they invented printing it made some of them happier because books could be printed and read.

world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.