There was a an increase of trading.The things that were traded were gold,salt and slaves.
The plague had an important effect on the relationship between the lords who owned much of the land in Europe and the peasants who worked for the lords. As people died, it became harder and harder to find people to plow fields, harvest crops, and produce other goods and services. Peasants began to demand higher wages.
The Amazon river is the longest with 4,345 miles
