Peer-reviewed chronology places Xunantunich’s rise as a regional center in AD 600–780, with autonomy in AD 780–890, followed by decline and collapse in the late 9th or early 10th century.
Claim about Xunantunich · Stance: supporting
LeCount, Yaeger, Leventhal & Ashmore (Ancient Mesoamerica) provide phase-based chronology (Samal 600–670; Hats’ Chaak 670–780; Tsak’ 780–890) and describe diminishing civic construction and rural population decline leading to late 9th/early 10th century collapse.
Site
- Xunantunich San José Succotz, Cayo, Belize
Evidence for and against
- Ancient Mesoamerica abstract provides phase-based chronology and collapse estimate for Xunantunich (AD 600–670; 670–780; 780–890; late 9th/early 10th collapse).