Demographic history of Japan before the Meiji Restoration
Demographic features of the population of Japan before the Meiji Restoration include aspects of nationality, religion, and ethnicity. == Population before Edo era == === Total population === Before the establishment of the religious and population investigation registers system by the Tokugawa shogunate, several less reliable sources existed upon which an estimate of the population was made.
Source: Wikipedia — Demographic history of Japan before the Meiji Restoration (CC BY-SA 4.0)