Because the United States is separated into three parts and each branch is responsible for a specific thing.
I think it’s the last one - reparation
It taught americans that we are a forced to be reckoned with when in times of war. Its changed their lives by realizing how much dead their was and why there should never be another world war
Answer: The black experience during the Great Migration became an important theme in the artistic movement known first as the New Negro Movement and later as the Harlem Renaissance, which would have an enormous impact on the culture of the era.
Virginia company struggled to attract settlers but its population grew dramatically so in 1619 the house of burgesses became America’s first legislative, or law-making body.
When the pilgrims decided to set sail for America in September 1620, 2 months later they reached land and the pilgrims signed the mayflower contract agreeing to make laws to protect the general good.
So to answer your questions, I believe these two occasions are important to self-government because the colonies are learning to be sufficient.