Egyptians the Copts, became dhimmis. In time the power of the Arabs waned throughout the Islamic Empire so that in the 10th century, the Turkish Ikhshids were able to take control of Egypt and made it an independent political unit from the rest of the empire. Egyptians continued to live socially and politically separate from their foreign conquerors, but their rulers like the Ptolemies before them were able to stabilize the country and bring renewed economic prosperity. It was under the Shiite Fatimids from the 10th to the 12th centuries that Muslim Egyptian institutions began to take form along with the
Irrigation works in ancient Sri Lanka to 367 BC. It is said that he had three tanks built, namely "Abhaya weva", "Gamini weva", and "Jaya weva", yet, presently, only one tank named "Basawakkulama weva" can be identified. After King Pandukabhaya, King Parakramabahu I had many tanks built, with one large tank called "Parakrama samudraya" still providing water for agriculture. It can be said that many rulers of Sri Lanka contributed to the development and construction of tanks all over the "Raja Rata" (Northern part of the country). Irrigation works in ancient Sri Lanka The irrigation works in ancient Sri Lanka, the earliest dating from about 300