The document provides a timeline of key events from the 19th century, including the Bessemer process for steel production in 1850, the Homestead Act of 1862, the Sand Creek massacre of 1864, the completion of the first transcontinental railroad in 1869, Alexander Graham Bell's patent of the telephone in 1876, the Battle of Little Bighorn in 1876, the Dawes Act of 1887 aimed at assimilating Native Americans, the Wounded Knee Massacre of 1890, and the rise of Jim Crow laws in the 1890s mandating racial segregation. Significant political, economic, social, and technological developments are chronicled over the latter half of the 19th