Well, concerning the floods: flooding is still really bad and usually affects a huge area. Normally it is not like one village floods and everybody dies and the next village is completely fine. So, for people who do not get around a lot it might feel like the whole world was flooded. Then maybe they hit a few bad years in a row, and BAM, God or somebody wants to punish humanity story confirmed.
Especially then. How would the ancients in India know that South America even exists? It floods in India, story develops. It floods 300 years later in South America, story develops. For all they knew, it was the whole world that flooded. They could not check back, whether it flooded on different continents.
Well, concerning the floods: flooding is still really bad and usually affects a huge area. Normally it is not like one village floods and everybody dies and the next village is completely fine. So, for people who do not get around a lot it might feel like the whole world was flooded. Then maybe they hit a few bad years in a row, and BAM, God or somebody wants to punish humanity story confirmed.
True but in parts of the world completely isolated from others? India in comparison to South America as an example.
Especially then. How would the ancients in India know that South America even exists? It floods in India, story develops. It floods 300 years later in South America, story develops. For all they knew, it was the whole world that flooded. They could not check back, whether it flooded on different continents.