| Official Name: | Arimaddana |
| Other Name: | Bagan |
| Pushpin Label Position: | right |
| Pushpin Map: | Burma |
| Pushpin Map Caption: | Location of Bagan, Burma |
| Established Date: | 22 March 750 |
| Established Title: | Founded |
| Subdivision Type: | Country |
| Subdivision Name: | Burma |
| Subdivision Type1: | Region |
| Subdivision Name1: | Mandalay Region |
| Population Blank1: | Bamar |
| Population Blank1 Title: | Ethnicities |
| Population Blank2: | Theravada Buddhism |
| Population Blank2 Title: | Religions |
| Population Density Km2: | auto |
| Coordinates: | 21.1667°N 146°W |
| Timezone: | MST |
| Utc Offset: | +6.30 |
Arimardanna Pura (Burmese: အရိမဒ္ဒနာပူရ, in Burmese pronounced as /ʔəɹḭ maʔdənà pùɹa̰/; Arimardanapur,) is the most famous classical name of the city of Bagan (Pagan), Myanmar. It means the "City that Tramples on Enemies."[1]
The Burmese chronicles do not agree on the foundation facts. The 16th century chronicle Yazawin Kyaw states that it was founded in 156 CE by King Pyusawhti.[2] The oldest chronicle Zatadawbon Yazawin says it was founded in 190 CE (Sunday, 15th waxing of Tagu 112 of Early Pyu calendar) by King Pyusawhti.[3] However, later standard chronicles of Toungoo and Konbaung dynasties, Maha Yazawin and Hmannan Yazawin respectively, state that the city was founded in 107 CE by King Thamoddarit, a scion of Sri Ksetra Kingdom.[4] The chronicles continue that King Thinli Kyaung I (r. 344–387) moved the palace to nearby Thiri Pyissaya.[5]
However, evidence indicates that the earliest human settlement in the Pagan region dates only from the mid-7th century CE.[6] Therefore, Zata's foundation date is probably based on the Burmese calendar, and the foundation date would be Sunday, 22 March 750.