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.
The Sri Lanka flag was officially adopted on December 17, 1978. Prior to 1815, the gold lion was originally the national flag of Ceylon; the four pipul leaves are Buddhist symbols and the sword represents authority. On this modern version, the green represents Muslims, and the orange represents Hindus.