Place · limestone shoal bridge · Sri Lanka
Adam's Bridge / Ram Setu
/ɾaːmɐ seːtu/
Also known as Rama Setu, Rama's Bridge, Adam's Bridge, Set Bandhai, Setubandha, Nala Setu, Nala-Nila bridge
A 48-kilometre chain of limestone shoals and sandbanks stretching between Rameswaram in Tamil Nadu and Mannar Island in Sri Lanka, traditionally identified as the causeway built by Rama's vanara army under the engineer Nala to cross to Lanka and rescue Sita. It is the single most physically visible piece of Ramayana geography, plainly readable from satellite imagery.
- Date
- Late Pleistocene
- Periods
- Prehistory, Republic and Living Practice
- Function
- Landscape & environmental change
- Confidence
- Qualified / contested
- Location
- 9.117, 79.533
Worth knowing
Persian and Arab geographers from the 9th century referred to the formation as Set Bandhai or "Bridge of the Sea." The colonial-era name Adam's Bridge derives from an Islamic tradition placing Adam's descent to earth on Adam's Peak in Sri Lanka, with the causeway as his crossing route. The Ram Setu / Sethusamudram controversy of the mid-2000s — over whether a shipping channel could be dredged through it — turned the shoals into a live political and legal question.
Geological studies indicate the formation is a natural chain of shoals dating to the late Pleistocene / early Holocene, though the exact age of individual sections is debated. Its identification as the Ramayana bridge is traditional, not historical or archaeological.
Connections (3)
- Mythic sequenceAdam's Peak / Sri Pāda
The name “Adam’s Bridge” belongs to a different religious tradition from Rama Setu. European usage connected the bridge with the Islamic-Christian story of Adam and Adam’s Peak in Sri Lanka. According to this tradition, Adam crossed toward the peak after his expulsion from paradise, creating a second sacred geography around the same landscape.
- Traveller routeIbn Khordadbeh
The ninth-century Persian geographer Ibn Khordadbeh, postmaster and intelligence chief of the Abbasid caliphate, recorded the shoals as Set Bandhai, a bridge across the sea between India and Sri Lanka, in his Kitab al-Masalik wa-l-Mamalik. It is an early non-Indian notice of the feature, and it shows that the identification of the shoals as a built causeway was known outside India within a few centuries of the epic's circulation.
- Site adjacencyLankā / Sri Lanka
The chain of limestone shoals between southeastern India and northwestern Sri Lanka forms a natural geographical connection. Known traditionally as Rama Setu, it is associated with Rama’s crossing to Lanka in the Ramayana. Medieval Arabic geographers also recorded the feature, demonstrating how the connection entered wider Indian Ocean geographical knowledge.
On these journeys
Sources
Ramayana
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