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.
In the emerald-green waters of the Indian Ocean, the island country of Sri Lanka, frequently referred to as the Teardrop of India, was first populated by the Sinhalese peoples from northern India in 543 BC. During the early ages, the Sinhalese economy centered around farming. During the Anuradhapura period and on through the Kandy period, a total of 181 kings ruled. During the reign of Devanampiya Tissa in 250 BC, Sri Lanka experienced a major transformation with the arrival of Buddhism.