Food & agriculture · c. 7,000 BCE
Domesticated rice
Along the Yangtze, wild rice became Asia's staple and eventually the food of half of humanity.
Japonica rice was domesticated in the lower Yangtze valley, with sites such as Shangshan showing cultivation by roughly 7000 BCE. Flooded paddies later gave some of the highest sustained yields of any pre-modern farming system.
What it built on 1
What it led to 2
Related measurements
The dashed line marks when it first worked.
World population over a million years Latest: 6.27k million people (2000) Source: DeLong 1998, table 'Total World Population' (Kremer series); Kremer 1993, Population Growth and Technological Change: One Million B.C. to 1990, QJE 108(3)
Cereal yield Latest: 4.21 t/ha (2024) Source: Our World in Data