What if the Indus Valley civilization had never been discovered or at least never properly excavated, so that it remained unknown in the West. IOTL it was discovered in the 1920s.
https://en.wikipedia.org/wiki/Indus_Valley_Civilisation
Does not knowing about the Indus Valley civilization actually change things?
https://en.wikipedia.org/wiki/Indus_Valley_Civilisation
Does not knowing about the Indus Valley civilization actually change things?