What limits does archaeologists evidence have as a historical source?

one central belief of buddhism is often referred to as reincarnation -- the concept that people are reborn after dying. buddhism is a philosophy of life expounded by gautama buddha ("buddha" means "enlightened one"), who lived and taught in northern india in the 6th century b.c.

these civilizations were located around fertile rivers, where they could produce an abundance of crops

we need the map to answer the question