Who first thought of the idea that government, like in the Constitution, should be broken into 3 equal branches? Please help me!

What is grievance 28 on the declaration of independence explained in simpler words? plz

When individuals with a stake in an issue affecting them begin to propose and develop solutions to a problem, they engage in

Initially, northerners did not want missouri to be included in the union because 1.) maine would not be allowed to enter the union as a free state 2.) missouri wanted to enter the union as a free state 3.) missouri wanted to enter the union as a slave state 4.) maine would not be allowed to enter the union as a slave state