What is "inthakin"

Inthakin (; lit. " Indra's pillar") is the name of the Lak Mueang (the "city pillar") of Chiang Mai. It is said that the pillar was first erected by King Mangrai at the founding of the city on April 12, 1296 CE at Wat Sadue Mueang (lit. "Temple of the Navel of the City"; also known as Wat Inthakin) on Inthawarorot road. It was brought to its present location inside a shrine on the temple grounds of Wat Chedi Luang by the Lanna king Kawila in 1800 CE.