How many presidents have been assassinated since american independence?

What were the three outstanding events in 1619 that had a great influence on the colonies? representative government came to america. the first slaves were brought to america. the first governor was elected. the london company sent women to america. john rolfe developed a money crop-tobacco. next question ask for

What happened as the result of a conflict between british troops and a colonial militia in massachusetts

Why is it important that dr. luther king jr. use non-violent protest to create social change?