You are ignoring the extremely detailed recording of history in the Indian subcontinent. Events, including the kings/queens that ruled over the Gangetic plains, their sons & lineage, wars, migrations, volcanic eruptions, weather changes (floods, earthquakes etc) have been VERY meticulously recorded as Itihāsa - Sanskrit for "It so happened". This goes back to at least 27,000 years before present - firmly placing the Indian subcontinent as the root of all of current human civilization. Why would you ignore such a vast & undeniable evidence, unless your "recorded history" is deemed to be Greek centric and not universal? That is hardly history!!