1911 Encyclopædia Britannica, Volume 15… (1911)
“ Rain is very scarce, but the canals supply ample water for cultivation and all other purposes. They are said to have been dug by King Nawrahtā in 1092. He is alleged to have completed the system of nine canals and weirs in three years’ time. Others have been constructed since the annexation of Upper Burma. At that time many were in serious disrepair, but most of them have been greatly improved by the construction of proper regulators and sluices. Two-thirds of the population are dependent entirely on cultivation for their support, and this is mainly rice on irrigated land. ”
