How can we study human development over two thousand years?
For most periods and regions, we lack reliable data on income, health, or education. Before 1800, and outside Europe, historical records are extremely fragmentary.
Thread 👇 🧵
How can we study human development over two thousand years?
For most periods and regions, we lack reliable data on income, health, or education. Before 1800, and outside Europe, historical records are extremely fragmentary.
Thread 👇 🧵