They were made of iron, creating a need for miners.

They raised crop production, increasing the food supply.

They put China ahead of other countries, allowing conquests.

They were heavy to use, making people with large families to help.

to go to the theater

to seek government jobs

to purchase luxury goods

to sell their surplus crops

it meant they could get better jobs

They were no longer forced to paint only landscaptes

There were more wealthy people to pay for their work

an alphabet

paper money

cotton

Millet

Rice

Wheat

Potatoes

Using a harrow

irrigating land with a chain pump

Doing The Nae Nae while singing Mary Had A Little Lamb

creating flat areas, called, terraces, for farming