What does it mean by kennedy "improvised remarks "?

Explanation:

Improvise is like to give a speech without practicing your own speech, and remarks mean to mention or regard with attention. So as a example of  " Kennedy's improvised remarks" is when he made a statement of MLK's assassination at Indianapolis, Indiana, April 4, 1968  

arresting and exicuting citizens

abraham lincoln, according to anyone who was connected with agriculture, represented the worst of northern politicians. shortly after lincoln was elected, south carolina seceded from the union. they along with other southern states, retained their anger. in a way, it was their own fault: the democrats were split in the south. some wanted slavery to be extended in other states that were about to join the union and some didn't want it badly enough. lincoln had a solid backing from his party: the republicans were united in not wanting slavery to be expanded.