1853 Hadley D. Johnson chosen delegate to Congress by an election held at Bellevue, with instructions to work for the establishment of a new territory west of the Missouri.
1854 A treaty with the chiefs of the Omaha was negotiated, by which that tribe ceded the land now comprising Omaha to the United States.
1854Nebraska Territory is organized under the Nebraska-Kansas Act on May 30, 1854.
1854 The Council Bluffs and Nebraska Ferry Company hired Council Bluffs surveyor Alfred D. Jones to survey Omaha City. The original town plat consisted of 320 blocks, each 264 feet square. All the streets were made 100 feet in width, except for Capitol Avenue and Twenty-First Street, which were 120 feet wide.
1854 Speculators from Council Bluffs celebrate Fourth of July with a picnic on the future "Capitol Hill" in Omaha.
1877 The Saratoga Bend is "cut off" from the Missouri River by a flood, forming what originally called Cutoff Lake. Vacation cabins on the east side of the lake eventually become the town of Carter Lake, Iowa.
1877 The outbreak of a railroad labor riot led to General Sheridan suggesting the stationing of a permanent garrison in Omaha.[7]
1878 The Sherman Barracks are made permanent, strengthened, and renamed Fort Omaha by the US government.
1878 A vigilante committee of 150 members was organized at Omaha "to suppress crime."
1879 The habeas corpus case of Standing Bear, a Ponca chief, and several members of his band was begun in the United States District Court at Omaha and attracted widespread attention.
1879 The first telephone exchange in Omaha was opened.
1880 700 men at the Omaha Smelter Works protest, threatening state militia in Downtown Omaha.
1894 A general strike in the Omaha meatpacking industry lasted more than a month.
1895 A Polish Catholic church in South Omaha is fought over by the church and the parishioners, leading to a gun battle. The church is closed and demolished by the local diocese.[8]
1898 The Trans-Mississippi Exposition was held in Omaha from June 1 to October 31, 1898. Its ornate grounds were created to highlight the economic, cultural and artistic achievements of the individuals who lived in the Midwest. All of the buildings, which housed over 5000 exhibits, were built as temporary structures.[9] Today there is a monument in North Omaha's Kountze Park, the former site of the exposition.
1899Otto Bayesdorfer builds the first Ottomobile, becoming the first of nearly a dozen Omaha car manufacturers.
1899 The Greater America Exposition held on the same site with many of the same features at the Trans-Mississippi Exposition.
1900–49
1903 1,900 strikers attack wagons in downtown Omaha.[10]
2007 On December 5, the Westroads Mall shooting occurred, leaving nine people (including the gunman) dead and four others wounded.[13]
2015 On October 1, ConAgra Foods (a Fortune 500 company) announced that it was moving its corporate headquarters from Omaha to Chicago, transferring at least 300 jobs and eliminating another 1,000.[14]
^Douglas County. Andreas' history of Nebraska. Retrieved 8/11/07.
^Hutton, P.A. (1999) Phil Sheridan and His Army. University of Oklahoma Press. p 178.
^Peattie, E.W. (1895) "How they live at Sheely: Pen picture of a strange settlement and its queer inhabitants," in (2005) Impertinences: Selected Writings of Elia Peattie, a Journalist in the Gilded Age. University of Nebraska Press. p 61.