 He was later to convene the Fifth Buddhist Synod in 1871, but wanted to leave a great work of merit by having the Tipitaka set in stone for posterity, meant to last five millennia after the Buddha.Construction began in 1860, its "hti" (umbrella or crown) mounted on 19 July 1862, and the inscriptions were laid open to the public on 4 May 1868.They were arranged in neat rows within three enclosures, 42 in the first, 168 in the middle and 519 in the third.