We tend to think of medieval and ancient societies as primitive, and what's often lost on people is how much organizational effort was required to build a bridg

We tend to think of medieval and ancient societies as primitive, and what's often lost on people is how much organizational effort was required to build a bridge or a temple. They had thousands of people working onsite and thousands more on quarries and in forests, this required many levels of management, dedicated logistics and payroll teams, all with paper or clay tablets, for projects that ran for multiple generations.