1803

Louisiana Purchase

1804–1806

Lewis and Clark Expedition

1851

First Fort Laramie Treaty

1861–1865

Civil War

1862

Santee Sioux (Minnesota) Uprising

November 29, 1864

Sand Creek Massacre

1866

Custer and the 7th Cavalry posted to Fort Riley, Kansas

1866–1868

Red Cloud's War

1868

Second Fort Laramie Treaty

November 27, 1868

Battle of the Washita

1873

Panic of 1873 and recession

1873

Custer and the 7th Cavalry posted to Ft. Abraham Lincoln, Dakota Territory

1874

Custer's Black Hills Expedition

Fall 1875

Allison Commission tries to buy the Black Hills; Lakota refuse to sell

December 3, 1875

Lakota and Cheyenne 'wanderers' ordered back to their reservations

January 31, 1876

Deadline for the Lakota and Cheyenne to return to their reservations

February 1, 1876

Off-reservation Indians certified hostile; matter handed to War Department

March1, 1876

Crook's Wyoming column departs Fort Fetterman, Wyoming Territory

March 17, 1876

Colonel Reynolds attacks Cheyenne camp on the Little Missouri River

April 3, 1876

Gibbon's Montana column departs Fort Ellis, Montana Territory

May 17, 1876

Terry's Dakota column departs Fort Lincoln, Dakota Territory

29 May, 1876

Crook's Wyoming column departs Fort Fetterman again

June 4–7, 1876

Sitting Bull's Sun Dance

June 10–17, 1876

Reno reconnoiters the area between the Powder and Tongue rivers

June 16, 1876

Lakota and Cheyenne move into the Little Bighorn valley

June 17, 1876

Rosebud Battle, or the Battle Where the Sister Saved Her Brother

June 22, 1876

Custer and the 7th Cavalry leave the camp on Yellowstone

June 25, 1876

Battle of the Greasy Grass/Little Bighorn

June 26, 1876

Lakota and Cheyenne break camp and move off

June 27, 1876

Gibbon and Terry relieve besieged remnants of the 7th Cavalry

July 4, 1876

American Centennial

July 6, 1876

Sherman and Sheridan receive confirmation of Custer's defeat and death

1876–1877

Army harasses off-reservation Indians throughout the fall and winter

May 6, 1877

Crazy Horse and his followers surrender

May 7, 1877

Sitting Bull and his followers cross into Canada

September 5, 1877

Crazy Horse killed

1879

First memorial to the 7th Cavalry erected on Last Stand Hill

August 1, 1879

Custer Battlefield designated a national cemetery of the 4th class

July 1881

Present granite memorial to the 7th Cavalry erected on Last Stand Hill

July 19, 1881

Sitting Bull surrenders at Fort Buford

December 7, 1886

National Cemetery of Custer's Battlefield Reservation established

1890

White granite headstones placed to mark where the soldiers fell

December 16, 1890

Sitting Bull killed

December 29, 1890

Wounded Knee Massacre

Aprill 14, 1926

Reno-Benteen Battlefield acquired

January 7, 1940

National Park Service assumes responsibility for the battlefield

March 22, 1946

Battlefield renamed the Custer Battlefield National Monument

December 10, 1991

Battlefield renamed the Little Bighorn Battlefield National Monument

December 10, 1991

Congress authorizes an Indian memorial at the battlefield

May 31, 1999

First red granite headstone placed to mark where a warrior was killed

June 25, 2003

Indian memorial dedicated at Little Bighorn Battlefield National Monument