HELP Which inventions had the greatest impact on trade in China during the Middle Ages?

Gunpowder and paper money

Explanation:

First, powder began to be used to make firecrackers, fireworks and flares to make signals. Then they invented weapons to use in war, in rifles and rockets.

Paper money has several advantages over the currency, it is more comfortable, a bill can replace several coins, it is lighter than the metal coins, but in itself the paper currency has no value as the coins were gold and silver.

im pretty sure it has something to do with the end of ww1

louverture's prominent role in the haitian success over colonialism and slavery had earned him the admiration of friends and detractors alike.

explanation:

toussaint louverture began his military career as a leader of the 1791 slave rebellion in saint-domingue; he was by then a free man and a jacobin.