President kennedy convenes executive committee to discuss options
<span>Most original Native American governments lend support to the "Evolution" theory of the origin of government. All Native American 'Governments' were Socialist Republics</span>
It would be the development in agricultural knowledge/technology
Development in agriculture enable hunter/gatherer society to shift their behavior. Before this, they had to keep moving from one place to another in order to seek food to live.
After the development in agricultural knowledge/technology, the society now can stay in one exact place for a long period of time and relied on agricultural product as their main source food.
After living in one same place for a long time, the needs to build things to accommodate their living start to arise. They start to built several things and repeat the process every year. In the end, large cities were developed from the initially small hunter/gatherer society.
Earl Warren's court help secure equality for citizens of the United States by expanding civil rights, civil liberties and the power of the judiciary in a dramatic manner. The court for instance found segregation in public schools to be a violation of the 14th amendment and declared it unconstitutional