Mandaeism
Originally, Mandaeism was practiced mainly in the countries around the lower Euphrates and Tigris and the rivers that surround the Shatt-al-Arab waterway. Today, this area belongs to Iraq and Khuzestan Province in Iran. Because they were persecuted in that area, many Mandaeans have left that area and now live abroad. This is commonly called diaspora. Most left for Europe, Australia and North America.