The Mexican Cession happened in 1848. In this treaty, Mexico handed over Texas to the US. Hope this helps.
Answer:
according to what i read on a book the Ku Klux Klan was made when South America losed the War with Norht America and the North America made liberty to the black slaves (ahem do not mind the racism), after that the slaves became like some kind of rogues and began attaking and robbing people, some robbed for food to sustain family and others because they want to, then there is when the Ku Klux Klan (also known as KKK) came and attaked or killed those freed black slave wiping them out.
it is all i can write
this is what i found if this not help im sorry and i qote
"The purpose of this study is to assess the ways in which President Dwight D. Eisenhower and John F. Kennedy reacted to the civil rights crises in Little Rock in 1957 and at Ole Miss in 1962. A side theme is to assess presidential learning by seeing whet Kennedy learned from the lessons taught by Eisenhower. Each president was reluctant to commit federal troops to enforcing civil rights, was concerned about the problems associated with federalism, and ended up feeling forced to commit troops nonetheless. The message is that despite the presidents' best intentions, troops ultimately had to be committed. Kennedy was unable to avoid the traps that Eisenhower had encountered, and the imposition of the national government on the enforcement of civil rights was firmly established.
"