Rama's bridge/Adams bridge

This is wat I studied in two different articles. The following facts are excerpts from the articles:Space images taken by NASA reveal a mysterious ancient bridge in the Palk Strait between India and Sri Lanka. The bridge currently named as Adam´s Bridge is made of chain of shoals, c.18 mi (30 km) long.The bridge´s unique curvature and composition by age suggests that it may be man made. The legends as well as Archeological studies reveal that the first signs of human inhabitants in Sri Lanka date back to the primitive age, about 1,750,000 years ago.(I don’t know whether this is true/ not)In the epic Ramayana, there is a mentioning about a bridge, which was built between Rameshwaram (India) and Srilankan coast under the supervision of Prince Rama who is supposed to be the incarnation of the supreme.But another theory (with the literary and archeological data) point to a more reasonable timeframe around 1900 B.C.E. when Prince Rama was assisted by Hanumant, a leader of a small tribe known as 'Vahner' to enhance the natural rock formation between India and Sri Lanka to cross it to move in troops and arms for a war with a Lankan King. The word 'Vahner' was mistranslated into Sanskrit as 'Vanara' which means 'Monkey' and the mythology grew from there. The Adam’s bridge over Palk Strait, said to be the remains of a bridge built by Lord Rama, dates back to only 3,500 years and not 1.7 million years as claimed earlier.

A team from the Centre for Remote Sensing (CRS) of Bharathidasan University, Tiruchi, has come up with startling facts about this ‘‘bridge’’. Led by Professor S.M. Ramasamy, the team is studying the geological changes that took place along the Tamil Nadu coastline in the past 40,000 years.Prof.Ramasamy explains that the land/beaches were formed between Ramanathapuram and Pamban because of the long shore drifting currents which moved in an anti-clockwise direction in the north and clockwise direction in the south of Rameswaram and Talaimannar about 3,500 years ago.The sand was dumped in a linear pattern along the current shadow zone between Dhanushkodi and Talaimannar. Later, corals may have accumulated over these linear sand bodies.But as the carbon dating of the beaches roughly matches the dates of Ramayana, its link to the epic needs to be explored, he adds. Declining to comment whether the bridge was indeed built by Rama, Prof.Ramasamy says he would leave that to the experts to answer..