Cup of the Ptolemies understanding, also referred to as "un-naming", seems to have been a way for pagan artifacts to be reused for Christian purposes. The cup was probably made in Alexandria, Egypt. It was once thought to date back to the Hellenistic period, c. 250 BC, but is now regarded as dating to the 1st century AD. Its supposed connection with the Ptolemies dates back to 1644, when the historian Jean Tristan de Saint-Amant argued that the vase was made for the funeral processions of Ptolemy II Philadelphus, who ruled the Ptolemaic Kingdom of Egypt from 285 until 246 BC. Later, the scholar
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