In at least 150 words, how did Mark Twain's childhood influence his writing as an adult?

When Sam was nearly four years old his family moved to Hannibal, Missouri, on the banks of the Mississippi River. His father, John Marshall Clemens, began to operate a general store. Later John Clemens was elected justice of the peace and held court sessions.

Sam began school when he was four and a half years old. He recalled breaking a rule on the first day of school and being warned. Then a second infraction brought a switching. Mrs. Horr "called me by my entire name, Samuel Langhorne Clemens-probably the first time I had ever heard it all strung together in one procession-and said she was ashamed of me. I was to learn later that when a teacher calls a boy by his entire name it means trouble."

When Sam was nearly four years old his family moved to Hannibal, Missouri, on the banks of the Mississippi River. His father, John Marshall Clemens, began to operate a general store. Later John Clemens was elected justice of the peace and held court sessions. Sam began school when he was four and a half years old. He recalled breaking a rule on the first day of school and being warned. Then a second infraction brought a switching. Mrs. Horr "called me by my entire name, Samuel Langhorne Clemens-probably the first time I had ever heard it all strung together in one procession-and said she was ashamed of me. I was to learn later that when a teacher calls a boy by his entire name it means trouble."