Konrad Kessler and Griffithes Wheeler Thatcher, 1911 Encyclopædia Britannica, Volume 17… (1911)
“ Thursday has a special sacredness as the day of Hibil Zīvā. As regards secular occupation, the present Mandaeans are goldsmiths, ironworkers, and house and ship carpenters. The Sidrā Rabbā lays great stress upon the duty of procreation, and marriage is a duty. In the 17th century, according to the old travellers, they numbered about 20,000 families, but at the present day they hardly number more than 1200 souls. ”
