The origins of Phra Pathommachedi have no historical record, but according to Subhadradis Diskul, a prominent Thai historian and archaeologist, Ashoka, an Indian Emperor who ruled almost all of the Indian subcontinent from circa 269 to 232 BCE, sent prominent Buddhist monks to expand Buddhism in Suvarnabhumi including the area that is Nakhon Pathom in the present day.
Phraya Phan then built a Sri Lankan style stupa by using a very big gong and his bed as a foundation and put Buddha's tooth relic inside.
In 1831 under the reign of king Rama III, his brother, Prince Mongkut, as a monk, discovered the ruin of Phra Pathommachedi, the pagoda with the prang shaped top with 84 meters high[6] and visited several times.
In 1832 Sunthorn Phu, a famous Thai poet, accompanied Prince Chutamani on a visit to Phra Pathommachedi.
The canals of Mahasawas and Chedi Bucha were also dug to facilitate commuting by boat between Bangkok and Nakhon Pathom.
Chulalongkorn added belfries and imported golden brown colour tiles from China to cover the whole stupa.
The population of nearby Nakhon Chai Si District was ordered to move to the newly created city around Phra Pathommachedi.
In 1907 as a Crown Prince, Vajiravudh, after visited Phra Pathommachedi for several times, he decided to build Sanam Chandra Palace in Nakhon Pathom.
After nine years research, the experts group reported that the stupa was in critical state and needed urgent restoration.
Initially the government plan had been welcomed by media and general public and supported by local municipal office as well as the temple.
Phra Pathommachedi Stupa and surrounding temple are located on the flat floodplain of Chao Phraya - Tha Chin rivers watershed.
The current form of Pathommachedi is bell shape Sri Lanka styled brick stupa covered by golden brown colour tiles.
Saovabha Phongsri built two levels grand staircase in front of the vihara as an entrance to the stupa complex in 1906.
In 1913, Vajiravudh appointed Prince Narisara Nuwattiwong, a notable Thai architect, to redesign the vihara to install the 7.2 metres (24 ft) Phra Ruang Rojanarit Sri Indraditya Dhammobhas Mahavajiravudhraj Pujaneeya Bophitr (พระร่วงโรจนฤทธิ์ ศรีอินทราทิตย์ธรรโมภาส มหาวชิราวุธราชปูชนียบพิตร).
[7] The beautiful new T-shaped vihara with apse liked portico in the front was completed in 1915 and has been called Viharn Phra Ruang (วิหารพระร่วง) after since.
The inner room has mural paintings depicting the stories of restoration of Phra Pathommachedi throughout the history and the gathering of heaven.
In the front of vihara has a portico housing Phra Phuttha Maha Vajira Maravichai Buddha image (Thai: พระพุทธมหาวชิรมารวิชัย), built by then Crown Prince Vajiralongkorn in 1984 when he was a Bhikku.
The inner room has mural paintings depicting Phra Pathommachedi throughout the history as well as Buddhist sacred sites in India.
Originally enshrined in the abandoned Na Phra Meru Temple, with unknown reason the image has been divided and kept in various places.
In 1967 Department of Fine Arts successfully assembled all the fragments of the image and gave to the temple of Phra Pathommachedi.
On the lower terrace in front of vihara has many sacred trees that related to the story of Buddha as well as two Chinese stone dolls.
The ordination hall is a single storey reinforced concrete building with traditional Thai temple glazed tiles roof.
There are four marble Bai Sema attached into the hall, and at the entrance adorned by two stone Chinese lion statues.
The ordination hall is a single storey reinforced concrete building with traditional Thai temple glazed tiles roof.
After built a railway station and the Northern Vihara became the main entrance, Chulalongkorn relocated the monastic area to the present location.
Initiated in the reign of King Chulalongkorn by Damrong Rajanubhab, who planned to gather artefacts scattered across Nakhon Pathom, Phra Pathommachedi National Museum (Thai: พิพิธภัณฑ์สถานแห่งชาติพระปฐมเจดีย์) has developed over time.
Zone 2 of the museum focuses on beliefs and religions through art mostly related to Buddhism - the main faith of Dvaravati culture.
Since 1974 Wat Phra Pathommachedi organized the festival in order to raise money to maintain the stupa and the temple.
The highlight of the ceremony is a lucky draw to find a person to be a representative of all worshippers to lit light in front of the Buddha image.
Most of worshippers bring red painted boiled eggs and yellow flower garlands to worship the Buddha image.