Logan Nordell By mrstblockfive Jan 1, 1803 Louisiana Purchase What made omaha become Omaha Jul 21, 1804 William Clark and Meriwether Lewis Made Cutlers Park Jun 26, 1806 Mormons The Mormons established the first non native residents of Omaha May 30, 1854 Kansas Nebraska Act West bank of the missori river Feb 28, 1857 The Economic Panic Freight Traffic Sep 2, 1863 First Public School First omaha public school May 10, 1869 Railroad Act 1864 Railroad Act