"Chaiyapreuk" (acacia) means "tree of victory". This wood was used by Thai locals to build a pillar high, buried deep, making a total height of , and in diameter. Inside was a horoscope for Bangkok. However, the shrine was renovated several times during the reigns of Kings Rama IV and Mongkut, and then became dilapidated. The king therefore ordered the excavation of the old pillar and construction of a replacement, with a new horoscope for the city placed inside. In 1852 the new pillar was installed, measuring tall, 47 centimetres (18.8 in) in diameter at the bottom, with a base wide. Both old and new pillars were moved to a refurbished pavilion with a spire ("prang") modelled on the shrine of Ayudhya. The shrine was finished on Sunday, 1 May 1853. In 1980, in preparation for the celebration of the 200th anniversary of Rattanakosin in 1982, the Bangkok city pillar shrine underwent renovation, including the addition of arches to house a five-city guardian deity.