American Indian Movement Timeline

AIM joined Pacific Northwest tribes in protesting violations of treaty-guaranteed fishing rights, supporting the 'fish-ins' movement that challenged state regulation of tribal fisheries. These actions helped build momentum toward landmark court victories affirming tribal treaty rights.

The brutal killing of Oglala Lakota man Raymond Yellow Thunder in Gordon, Nebraska, prompted AIM to organize protests demanding justice. AIM's response to the case, including demonstrations in nearby Custer, South Dakota, galvanized support on the Pine Ridge Reservation and expanded AIM's presence in the Dakotas.

Following the Wounded Knee occupation, tensions between AIM supporters and tribal chairman Dick Wilson's GOON squad led to years of violence on Pine Ridge, with dozens of AIM members and supporters killed. The FBI's heavy presence on the reservation intensified conflict and set the stage for further tragedy.

Image source: Pine Ridge Indian Reservation

Dennis Banks and Russell Means stood trial in St. Paul, Minnesota, on charges stemming from the Wounded Knee occupation. In one of the longest federal trials in Minnesota history, Judge Fred Nichol dismissed all charges due to prosecutorial misconduct, a major legal victory for AIM.

Image source: United States v. Washington

In United States v. Washington, Federal Judge George Boldt reaffirmed treaty rights of Puget Sound tribes to half of the salmon harvest, vindicating years of activism including fish-ins supported by AIM. The decision became one of the most significant affirmations of tribal sovereignty in U.S. history.

A shootout at a ranch near Oglala on the Pine Ridge Reservation killed FBI agents Jack Coler and Ronald Williams as well as Native resident Joe Stuntz. The incident triggered one of the largest FBI manhunts in history and led to the prosecution of AIM member Leonard Peltier.

Image source: Leonard Peltier

The body of Mi'kmaq activist Anna Mae Pictou Aquash, a prominent AIM member, was discovered near Wanblee, South Dakota. Her murder, initially attributed by authorities to exposure, was later shown to be a homicide linked to paranoia and suspicion within AIM amid FBI infiltration, becoming a lasting symbol of the era's turmoil.

Image source: Anna Mae Aquash

The U.S. Senate Church Committee exposed the FBI's COINTELPRO program, which had surveilled and disrupted civil rights groups including AIM through informants, disinformation, and provocation. The revelations confirmed AIM's long-standing claims of government repression and fueled ongoing demands for accountability.

Image source: COINTELPRO

AIM member Leonard Peltier was convicted and sentenced to two consecutive life terms for the deaths of the FBI agents at Oglala. His trial, marked by disputed evidence and allegations of misconduct, transformed Peltier into an international symbol of Native American political imprisonment, with Amnesty International and many others calling for his release.

Former AIM member Arlo Looking Cloud was convicted of participating in the 1975 murder of Anna Mae Aquash and sentenced to life in prison. The trial shed light on the internal paranoia and FBI infiltration that plagued AIM in the mid-1970s.

John Graham, another former AIM associate, was convicted in South Dakota for his role in the kidnapping and murder of Anna Mae Aquash, closing another chapter in the decades-long effort to resolve her killing.

AIM leaders established the International Indian Treaty Council to bring Native American issues to the international stage. The ITCO gained consultative status at the United Nations and played a key role in developing the UN Declaration on the Rights of Indigenous Peoples.

Image source: International Indian Treaty Council

Spurred by decades of activism including AIM's campaigns, President Jimmy Carter signed the American Indian Religious Freedom Act, protecting the rights of Native Americans to practice traditional religions, access sacred sites, and use sacred objects — reversing long-standing federal suppression of Indigenous spiritual practices.

Image source: American Indian Religious Freedom Act

AIM co-founder Russell Means sought the Libertarian Party's presidential nomination in 1987, finishing second at the party convention. His campaign highlighted Native sovereignty issues on a national political stage and demonstrated AIM leaders' continued engagement in mainstream politics.

Image source: Russell Means

Internal disputes split AIM into two rival factions, one led by Russell Means based in Colorado and another led by Clyde Bellecourt in Minnesota. The division reflected longstanding ideological and personal conflicts but both factions continued advocacy for Native rights.

AIM co-founder Clyde Bellecourt received numerous honors recognizing his decades of activism, including efforts in Native education, prison reform, and anti-mascot campaigns. His leadership helped institutionalize AIM's contributions to the broader Native American civil rights movement.

Image source: Clyde Bellecourt

Russell Means, one of AIM's most charismatic and visible leaders, died of cancer at age 72. His death prompted widespread reflection on his role in the Wounded Knee occupation and the modern Native American rights movement.

The U.S. Patent and Trademark Office canceled the Washington football team's trademarks, ruling the name disparaging — a victory for decades of activism against Native mascots in which AIM played a leading role. The team ultimately retired the name in 2020.

Image source: Washington Redskins name controversy

Clyde Bellecourt, a principal founder of AIM, died at age 85 in Minneapolis. Tributes honored his lifelong commitment to Native sovereignty, cultural preservation, and justice, cementing his legacy as a central figure of the Red Power movement.