It would be the Anasazi, the Hohokam, and the Mongollon
Since you provide no options
Both of the revolutionary movement in India and China started the conflicts before the World War 2 , But the new Government was formed after the world war 2. ( new government of India formed on 1947s and The new government in China formed on 1949s )
The letter that has to be written can be
Dear President Reagan
I hope you will be thrilled to hear this news from the Soviet union. It is the time that the regions and the areas in the soviet union needs some kind of reforms, some kind of changes for the betterment and the welfare of the region and the area. I will be very happy to tell you that the person who is going to form these reforms, institute these would be me. I want to take the initiative for this.
The Office will remain vacant until the next presidential election.
Answer:
John Brown is because he's the one who fought to end slavery