Answers

2014-07-08T14:47:54+05:30
Because it will help to know about that time since it was a very long time ago so there was other written records that can help us for know about the information of That civilization.
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  • Brainly User
2014-07-08T14:54:37+05:30
Archaeological sources are the main sources for knowing not only Harappan civilization but also others. It is through the things that are excavated we are becoming aware of their culture, knowledge ,development and other areas.
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