🇻🇳 Vietnam · Ancient city
Oc Eo
Funan 1st–12th c CE → Chenla → Post-Funan · Funan (Austroasiatic–Indianized) → Mekong–Champa transit
Funan canal city expanded — 11 canals and Ba Thê hill with Roman coin at Óc Eo, An Giang (1st–12th c).
🇪🇬 Egypt · Submerged site
Thonis-Heracleion Annex — Central Canal House Islets
Saite to Roman (550 BCE–50 BCE Thonis = Heracleion Greek; 8th c. BCE Canopic temple) sank 100–300 CE subsidence and liquefaction · Egyptian-Saite → Ptolemaic Thonis first port before Alexandria with Decree of Sais 380 BCE twin stelae (Rosetta precursor) and Amun of Gereb
Thonis Goddio 2000 rediscovery after10 m, temple Amun Gereb with Sais stele 380 BCE.