Oceanic eddies are also usually made of water masses that are different from those outside the eddy. That is, the water within an eddy usually has different temperature and salinity characteristics to the water outside the eddy. There is a direct link between the water mass properties of an eddy and its rotation.
It changed its name to Free, Sovereign and Independent Republic of Sri Lanka in 1968 and finally to its current name Democratic Socialist Republic of Sri Lanka in 1972. February 4 each year is celebrated as a national holiday in Sri Lanka.
History of Sri Lanka. The first entries in the Mahavamsa or Great History date back to 543BC, which coincides with the arrival of Prince Vijaya in Sri Lanka. Some 300 years later, commenced the early Anuradhapura Period, with King Devanampiya Tissa as the first ruler.