🇮🇳 India · Ancient city
Kalibangan — Fire Altars and Ploughed Field
Harappan (3500–1900 BCE; Pre-Harappan Sothi 3500; Mature 2600–1900) · Harappan Sothi → Harappan
Ghaggar Kalibangan excavated by Thapar & Lal 1960–69, ploughed field cross-furrows 2900 BCE earliest plough.