Complex sentence: He went to Miller's Hollow, now Council Bluffs, in 1848, built the first house in Pottawattamie County (other than log cabin) and was postmaster at Council Bluffs for five years and obtained a change of name from "Kanesville" to Council Bluffs.
Split into simpler sentences: He went to Miller's Hollow, now Council Bluffs, in 1848. He was postmaster at Council Bluffs for five years and obtained a change of name from "Kanesville" to Council Bluffs.