Invention of the Wheel

• The most spectacular technological advancement in the early history of transportation was the invention of the wheel which was used first in the Tigris-Euphrates valley around 3500 BCE.
  

Roads

• The Romans were famous for their road building technology.
  
  
• The roads were mainly for military purposes. They were a part of Rome's military might. Travel was a specialized affair where only the merchants and soldiers are the only people who traveled.
  
  
• Roads helped in urbanization.