4. The Roman Empire
( Muslim Empire is not a thing)
Answer:
So we don't breath in bad air and also so we don't have polution
Explanation:
Idk
Answer:
The Printing Press
Explanation:
In the 15th century, an invention called the printing press enabled people to share knowledge more quickly and widely. Civilization never looked back. Knowledge is power, as the saying goes, and the invention of the mechanical movable type printing press helped disseminate knowledge wider and faster than ever before.
