
Originally posted by
TradArch12
TS, you can maintain a density even greater than Manhattan, even with buildings only 4 stories tall.
In 500 BC, Athens had a population of about 600,000, and an area of only 1 square mile.
In 200 AD, Ostia had a population of about 75,000, and yet only occupied about .15 square miles.
In 150 AD, Paris had about 80,000 people, but occupied only about .18 square miles.
In about 10 AD, Rome had about 2,000,000 people, yet it occupied only 5 square miles. (keep in mind, this population was about 40% of the whole Roman Empire)
In 2000 BC, Ur had about 65,000 people. Yet it was only about .25 square miles.
In 70 AD, Jerusalem had about 200,000 people. But it occupied only .8 square miles.
If you want to go more "modern", Moscow, in 1638 AD had a population of 200,000; yet occupied an area of just 1.2 square miles.
In 1550 AD, Paris had about 275,000 people in an area of just 1.7 square miles.
In 1567 AD, Antwerp had about 105,000 people in an area of just 1 square mile.
In 1789 AD, Paris had about 630,000 people in an area of just 7 square miles.
All of these have densities greater than both modern Manhattan and the loop in Chicago. Yet their buildings weren't any greater than about 7 stories. (the more ancient ones would have been much shorter)
In the most extreme example of ancient Athens, the urban population of the world would only occupy 5,000 square miles. (though that definitely isn't realistic)
In the lowest example, it would only be 50,000 square miles. (which the top 20 urban areas in the world occupy greater than that currently)
Height of the buildings doesn't necessarily matter, we can see that our cities sprawl with 1-2 story buildings. Athens current sprawls out with buildings over 7 stories. Asian cities are capable of sprawling out with buildings over 20-30 stories. It's all sprawl regardless.
For at least 4,000 years, our urban populations have occupied densities far exceeding Manhattan. It's only in the last couple centuries that we have stopped.