I'd say that they got it from exploration, really.
The Native Americans resisted by basically doing rebellions. They would raid places and burn down places and etc, until they got what they wanted. Even in some places their efforts were so impactful laws were changed.
Answer:
If their writing dissapears, then, what is known about that civilization is also likely to dissapear, unless their previous writing was preserved in some other way.
This is something that has actually happened often in history. For example, the library of Alexandria, in Egypt, was the largest library of the Ancient World, and it was burned down by Caliph Omar in 642 AD. Countless works by Ancient authors, that gave account of civilizations, cultures, philosphies, and religions, were lost, and there is no plausible way to recover such knowledge in the current era.
Solon (around 590 BC), Cleisthenes (508 BC), and Ephialtes (462 BC) contributed to the development of democracy. Usually, the establishment of democracy attributed to Cleisthenes, since the laws of Solon were <span>abolished</span> by Pisistratus and Ephialtes just improved some settings of Cleisthenes.
I'm greek, so I hope I've helped you.
<span>go to https://en.wikipedia.org/wiki/Yuan_Shikai
and it will tell you everything about him
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