The 19th century timeline outlines major events from 1848 to 1905 including the publication of Marx's Communist Manifesto in 1848, the completion of the Transcontinental Railroad in 1869 connecting the eastern and western United States, the invention of the telephone by Alexander Graham Bell in 1876, and the Wright brothers' first successful flight in a powered, heavier-than-air aircraft in 1903. Key social movements and developments are also noted such as the rise of industrialization, expansion of railroads, women's suffrage movement, and social reforms addressing issues like child labor and poverty in urban areas.