The actions during the Boston year party show that colonist wanted more representation in government because Britain can tax them without representation
Well, the reason they put the tea in the ocean is to prove they didn't enjoy being taxed. They also burned paper and such because of taxes as well. They said 'taxation without representation' in these revolts. Or you can use this
As far as the institution of chattel slavery ; the treatment of slaves as property ; in the United States, if we use 1619 as the beginning and the 1865 Thirteenth Amendment as its end then it lasted 246 years, not 400.