Fueling Mexico City: A Grain Revolution:This is a kilo of tortillas. That’s what one person in a city needed. It’s the same weight, more or less, whatever the grain is-you can go to the historical record, you can research in China, in India, in the Near East, and you will still be talking about 2 lbs of grain-based food for every person in the city every day.
So you can do some calculations. If you’ve got a city of a million, like ancient Rome, you’ve got to get two million pounds of grain into the city every day. It’s the same for all the cities in the world- it’s 2 lbs of grain per person. That’s the power, that’s the energy that drives cities.
This is a pretty cool article on the evolution of food production in Mexico and the way in which mass production of tortillas and wheat breads is transforming Mexican society.
(
kottke.org)