FORT ROBINSON BREAKOUT - at 10 am, January 9, 1879, the break out by Northern Cheyenne led by Chief Dull Knife in defiance of returning to Indian territory in Oklahoma. It was one of many tragic events for the Northern Cheyenne during their odyssey from Oklahoma. Many of the people that broke out were killed near the fort. At the end, they were given a reservation by Executive Order in eastern Montana.

LITTLE WOLF HOMECOMING - In September 1878, 300 Northern Cheyenne under Chiefs Little Wolf and Dull Knife left Indian Territory in what is now Oklahoma to return to their ancestral homelands in what is now Montana, Wyoming and South Dakota. Chief Dull Knife took his band to Fort Robinson, Nebraska. Chief Little Wolf, with his band continued on to Montana and reached the headwaters of Otter Creek and the Yellowstone on April 1, 1879.

HOLLOWBREAST CASE - A decision by the US Supreme Court confirming the tribe's ownership of minerals including oil, gas and coal within the exterior boundaries of the reservation as opposed to individual tribal ownership.

BATTLE WHERE THE GIRL SAVED HER BROTHER - On June 17, 1876 Buffalo Calf Road Woman, a Northern Cheyenne woman saved her wounded warrior brother Chief Comes in Sight, in the Battle of Rosebud (as it was called by the United States.) Her rescue helped rally the Cheyenne warriors to win the battle. She fought next to her husband in the Battle of the Little Bighorn that same year.

CHEYENNE VICTORY DAY - June 25 & 26, 1876, a celebration in defeating Long Hair (George A. Custer) in eastern Montana ("Where Long Hair was wiped away"). This site is located in eastern Montana at the National Park Service's Little Big Horn Battlefield.

CHEYENNE HERITAGE DAY - In 1968 Ronald Reagan signed a resolution calling for a holiday called American Indian Day, to be held the fourth Friday in September. In 1998, the California Assembly passed AB 1953, which made Native American Day an official state holiday.

CHEYENNE PRESIDENT'S DAY - In honor of the first Northern Cheyenne Tribal President, Joe White Bear.

RESERVATION ANNIVERSARY - The United States established the Tongue River Indian Reservation, now named the Northern Cheyenne Indian Reservation, of 371,200 acres by executive order of President Chester A. Arthur on November 16, 1884.

SANDCREEK/WASHITA MASSACRE - On November 29, 1864, a 700 man force of Colorado Territory militia attacked and destroyed a village of friendly Cheyenne and Arapaho encamped in southeastern Colorado Territory, killing and mutilating an estimated 70-163 Indians, about two-thirds of whom were women and children.