It happened in the 1800s because of thomas jefferson
Answer:
Roads were a way to extend Roman military and economic power; they made the movement of both soldiers and goods easier and faster. ... The Romans also engaged in trade across the Mediterranean Sea.
Explanation:
The cultural change that resulted from an eight hour workday was that leisure times was "invented" people suddenly had more time as they were able to work for only 8 hours, they could spend other time doing other things.