(1811 CE) Chao ('lord') Racha Wong Singh[citation needed] (เจ้าราชวงศ์สิงห์ — 'descended from lions') more often transliterated sing, led his people to a landing on the River Chi, to found a town on a bluff near a deserted temple.

A weather-worn and now nearly illegible marker erected by Thailand's Fine Arts department (กรมศิลปากร) for a Khmer chedi by Wat Sing Tha, related that during the Thonburi Era, grandson Thao Kham Su (ท้าวคำสู) called the settlement Ban Sing Thong (บ้านสิงห์ทอง Ban Gold Lion).

The wat, which had been deserted until dense jungle growth blocked the landing, was cleared, re-built and renamed after the new village.

[4] On 15 August 2011, a monument to Singh, the first Phra Sunthon Ratcha Wongsa, was erected on the grounds of Wat Srithammaram.

He led the army from Bangkok that put down the 1826–1828 Laotian Rebellion (ปราบกบฎ) of Chao Anouvong of Vientiane (เจ้าอนุวงศ์ เวียงจันทน์).

The site is now Wat Tung Sawang Chaiyaphum (วัดทุ่งสว่างชัยภูมิ 'field of bright victory',) featuring a nine-spire chedi.

Yasothon's Rocket Festival (Thai: ประเพณีบุญบั้งไฟ, RTGS: prapheni bun bang fai) is held annually over a weekend that falls in the middle of May.

The festival is a competition marked by a weekend of celebration, including highly decorated floats parading through the town, accompanied by partying, dancing, music, and a fair.

Friday the main thoroughfare is transformed into a parade ground lined on both sides by concert stages, which features mor lam performers throughout the evening.

Motorcycle taxis with yellow license plates and drivers with identifying vests serve the city and outlying areas.

Yasothon's bus terminal re-located from the city centre to Route 23 Bypass just east of the Ban Kham Noi Junction with Vittaya Thamrong Road, Rte YS-2018.15°48′35.25″N 104°9′25.43″E / 15.8097917°N 104.1570639°E / 15.8097917; 104.1570639