The Buddha Bone Relic in Bangkok, Thailand

The relic was originally excavated by Mr. Pepe, an English man in AD 1897 at Piprahwa village,Basti District, Uttra Padesh, North-West of India near Nepal border.
" C " in the above diagram is a stone casket ( photo below) about 20 feet under the ground
In side the casket, there were several urns.One has the inscription in ancient Indian alphabetswhich magnified by new technology.
Translated by T.W. Rhys Davids as: " This shrine for Relics of the Buudha, the August one, is that of the Sakayas, the brethen of the Distiguished one, is association with their sister and with their children and their wives."('Asoka and the Buddha-relics', by T.W. Rhys Davids, JRAS (UK) 1901)
Marquis Curzon, a British viceroy of India then presented a portion of the Relic to Thailand during the reign of King Rama V (Chulalongkorn) who interred the relic at the stupa of Phu-Khao-Thong, Wat Srakessa( Sa-Gest temple ) Bangkok in 1899.
The Relic is at the center, surrounded by pillars. The location is marked by a green color light at night
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If you are interested ,please click at the following sites
About Wat Srakessa( Sa-Gest temple ) Bangkok Thailand.

The Buddha's relic in Ayutthaya, Thailand.

The Buddha's skull relic in India.

The Controversy about the Piprahwa excavation.