1854 The Kansas-Nebraska Act becomes law establishing the US territories of Nebraska and Kansas.
1855 Indian Wars: in Nebraska, 700 soldiers under United States General William S. Harney avenge the Grattan Massacre by attacking a Sioux village and killing 100 between men, women and children.
1863 The first claim under the Homestead Act is made by Daniel Freeman for a farm in Nebraska.
1867 Nebraska becomes the 37th U.S. state; Lancaster, Nebraska is renamed Lincoln and becomes the state capital.
1867 Nebraska becomes the 37th U.S. state; Lancaster, Nebraska is renamed Lincoln and becomes the state capital.
1871 The U.S. Army issued an order for abandonment of Fort Kearny in Nebraska.
1874 The first Arbor Day is celebrated in Nebraska.
1877 Chief Crazy Horse of the Oglala Sioux surrenders to United States troops in Nebraska.
1877 Indian Wars: Oglala Sioux chief Crazy Horse is bayoneted by a United States soldier after resisting confinement in a guardhouse at Fort Robinson in Nebraska.
1917 In Nebraska, Father Edward J. Flanagan founds Boys Town as a farm village for wayward boys.
2004 The U.S. town of Hallam, Nebraska, is wiped out by a powerful F4 tornado (part of the May 2004 tornado outbreak sequence) that broke a width record at an astounding {{convert|2.5|mi}} wide, which kills one resident.
2007 Westroads Mall massacre: A gunman opens fire with a semi-automatic rifle at an Omaha, Nebraska mall, killing eight people before taking his own life.