Answer: most people had black swollen lymphs so it was called the Black Death
Explanation: it was called the black death because most people who died of the disease had black swollen lymphs giving the plague a nickname the Black Death.
They both are democratic systems
Johannes Gutenburg created the printing press during the renaissance. It was important because it made the mass production of printed materials possible. It also lead to a much wider dissemination of knowledge and literacy throughout the socioeconomics classes.
A product is commodity when it is fungible. Commodities are raw materials like corn, wheat, copper, crude oil, etc.