How did the göbekli tepe ruins contradict the standard thinking about neolithic people?

The answer is they had skills similar to modern people

Explanation:  Neolithic is a chronological division of the so-called Prehistory of Humanity, from 10,000 BC to 4,000 BC Neolithic means “new stone” or Polished Stone Age.

These denominations indicate that the divisions in this period of human existence were made from the development of man-made artifacts, as well as the development of some practices regarding their action on nature.

here are some events that to cause increased conflict between the north and south

1) mexican cession- gaining modern day california, utah, arizona, and new mexico from mexico. caused southern and northern politicians to fight over whether or not there would be slavery in these newly acquired territories.

2) uncle tom's cabin- this famous book described the cruelty of slavery in the south during the antebellum period, causing more northerners to support abolition and southerners to resent the book as they felt it unfairly depicted southern society.

3) kansas- nebraska act- disagreements over whether or not kansas and nebraska would be free or slave states caused issues between northern and southern politicians in congress.

4) bleeding kansas- this fighting took place in kansas after congress allowed this territory to vote on whether or not they would have slavery. citizens were killed and buildings were destroyed during this fighting.