One of the most important was climate changes. As climate changed, nomads had to find new places to migrate to which led to people going to areas that were uninhabited before. Another was the development of agriculture which more or less ended the nomadic way of life when people started settling.
<span>the white terror that's what i think i hope that's right
</span>
A coming together, to "blind the nation's wounds"
Not a history expert my guess would be the last one. Riot
