Answer:
Refers to open fighting between pro-slave and free-state supporters including burning of towns and massacres of people not fighting
Step-by-step explanation:
Bleeding Kansas occurred during the legalization of Kansas from being a territory to becoming a state. This is extremely important, as Kansas was trying to enter the union as a stand-alone state, in which the two opposing sides could not agree whether or not it should become a free or slave state. Large amounts of people entered Kansas to fight during the event known as "Bleeding Kansas", in which both parties murdered each other. In the end, Kansas was admitted as a free state to the Union.