This document provides a US history timeline from 1850-1910 that highlights several important events, people, and developments. It summarizes the Bessemer Process for cheap steel production in 1859, the Homestead Act of 1862, the Transcontinental Railroad completion in 1869, and John D. Rockefeller founding Standard Oil in 1870. It also mentions Jacob Riis exposing NYC poverty in 1870, Alexander Graham Bell's telephone invention in 1876, and Sitting Bull surrendering to the federal government in 1881.