engineering timeline By williem22 May 10, 1862 transcontinental railroad was created Sep 8, 1870 first theoretical understanding of elecktisaty Sep 8, 1878 light bulb was invented Jan 1, 1881 first lighting system Sep 8, 1885 monotype & linotype Jan 1, 1892 a.c became primary electrical distributed Sep 8, 1902 first controled flight Sep 8, 1903 ford motorcar was made Sep 8, 1920 almost everyone in the us had a ford Sep 8, 1940 computer was made Sep 8, 1950 computer became commercially avalabul