U Thong district
U Thong is the district in the western part of Suphan Buri province, north of Bangkok.
History
[Image:Phrajaouthong06.jpg|thumb|Statue of Phra Chao U-Thong (founder of Ayutthaya) in Amphoe U Thong, Suphan Buri Province.]Higham states, "U-Thong was occupied for many centuries prior to the development of the Dvaravati state. Radiocarbon determinations from the sites of U-Thong and Chansen suggest that the transition into complex state societies in the Chao Phraya basin took place between about 300–600 AD." A copper inscription from the mid-7th century states, "Sri Harshavarman, grandson of Ishanavarman, having expanded his sphere of glory, obtained the lion throne through regular succession," and mentions gifts to a linga. The site includes a moat, 1,690 by 840 m, and the Pra Paton caitya.
It also became the origin of the Ayutthaya Kingdom, as the first King of Ayutthaya, Ramathibodi, was prince of U Thong when the city was struck by an epidemic, prompting him to relocate east and found Ayutthaya.
U Thong district was created with the name Chorakhe Sam Phan in 1905. In 1939 the district was renamed U Thong. In 1944, the government moved the centre of the district from Ban Chorakhe Sam Phan to the area of the ancient city.
Geography
Neighbouring districts are : Don Chedi, Mueang [Suphan Buri district|Mueang Suphan Buri], Bang Pla Ma, Song Phi Nong of Suphan Buri Province; Lao Khwan, Huai Krachao, and Phanom Thuan of Kanchanaburi province.Administration
Central administration
U Thong district is divided into 13 sub-districts, which are further subdivided into 154 administrative villages.| No. | Name | Thai | Villages | Pop. |
| 1. | U Thong | อู่ทอง | 11 | 23,868 |
| 2. | Sa Yai Som | สระยายโสม | 10 | 8,352 |
| 3. | Chorakhe Sam Phan | จรเข้สามพัน | 15 | 13,105 |
| 4. | Ban Don | บ้านดอน | 9 | 7,710 |
| 5. | Yung Thalai | ยุ้งทะลาย | 7 | 4,497 |
| 6. | Don Makluea | ดอนมะเกลือ | 12 | 4,548 |
| 7. | Nong Ong | หนองโอ่ง | 14 | 9,859 |
| 8. | Don Kha | ดอนคา | 20 | 13,245 |
| 9. | Phlapphla Chai | พลับพลาไชย | 14 | 11,854 |
| 10. | Ban Khong | บ้านโข้ง | 14 | 8,855 |
| 11. | Chedi | เจดีย์ | 8 | 3,076 |
| 12. | Sa Phang Lan | สระพังลาน | 10 | 5,203 |
| 13. | Krachan | กระจัน | 10 | 7,249 |
Local administration
There are nine sub-district municipalities in the district:- Chorakhe Sam Phan consists of sub-district Chorakhe Sam Phan.
- Chedi consists of sub-district Chedi.
- Sa Yai Som consists of parts of the sub-district Sa Yai Som.
- U Thong consists of parts of the sub-district U Thong.
- Khun Phat Pheng consists of parts of the sub-district Sa Yai Som.
- Ban Don consists of sub-district Ban Don.
- Ban Khong consists of sub-district Ban Khong.
- Krachan consists of sub-district, Krachan.
- Thao U Thong consists of parts of sub-district U Thong.
- Yung Thalai consists of sub-district Yung Thalai.
- Don Makluea consists of sub-district Don Makluea.
- Nong Ong consists of sub-district Nong Ong.
- Don Kha consists of sub-district Don Kha.
- Phlapphla Chai consists of sub-district Phlapphla Chai.
- Sa Phang Lan consists of sub-district Sa Phang Lan.