In what ways were the pre-Indus (5000-2600 BCE) and post Indus (1900-1200 BCE) periods different from the Indus period (2600-1900 BCE)?
source: https://indusvalley-harappa.weebly.com/uploads/3/9/0/6/39066825/header_images/1410361819.jpg The Indus period (2600-1900 BCE) often referred to as the Harappan civilization is amongst the oldest civilization known today, the other being the Mesopotamian and Egyptian civilization. The absence of its mention in the literary accounts and the non-decipherment of its script has left us with archaeology as the only field to give some proven insights on the period. But with archaeology with its own limitations pertaining to excavation and differences on interpretation of artefacts provide us with only limited knowledge leading to no concrete notion about the period. Thus, it becomes a challenge to compare and demarcate it with surrounding ancient cultures with no uniform notion which can be decided upon. The enlightenment years and the start of colonialism in India prepared a ground for a spirit of inquiry about India’s past leading to exploration works in the early 19 th century. ...