Black Panthers line up at a Free Huey rally in DeFremery Park in west Oakland in 1968

Black Panthers line up at a Free Huey rally in DeFremery Park in west Oakland in 1968

Huey P. Newton during KPFA interview.

Huey P. Newton during KPFA interview.

The Black Panther Newspaper Vol V. No27

The Black Panther Newspaper Vol V. No27

The Black Panther Newspaper Vol. ,No.1, April 25, 1967

The Black Panther Newspaper Vol. ,No.1, April 25, 1967

The Black Panther Newspaper Vol.1 ,No.2 ,May 25, 1967

The Black Panther Newspaper Vol.1 ,No.2 ,May 25, 1967

Children sit to eat at a free meal provided by the Black Panther Party. Stephen Shames and Ducho Dennis

Children sit to eat at a free meal provided by the Black Panther Party. Stephen Shames and Ducho Dennis

Bags of groceries are arranged to be given away to the community. Stephen Shames and Ducho Dennis

Bags of groceries are arranged to be given away to the community. Stephen Shames and Ducho Dennis

George Jackson’s funeral at St. Augustine’s Church, Oakland, California, 1971

George Jackson’s funeral at St. Augustine’s Church, Oakland, California, 1971

Two women with bags of food at the People’s Free Food Program, one of the Panther’s survival initiatives, Palo Alto, California, 1972

Two women with bags of food at the People’s Free Food Program, one of the Panther’s survival initiatives, Palo Alto, California, 1972

William Hampton (from left), brother of slain Illinois Black Panther Party chairman Fred Hampton Sr., the Rev. Jesse Jackson, Black Panther Party official Bobby Rush and Renault Robinson, president of the Afro American Patrolmen’s League, are shown a

William Hampton (from left), brother of slain Illinois Black Panther Party chairman Fred Hampton Sr., the Rev. Jesse Jackson, Black Panther Party official Bobby Rush and Renault Robinson, president of the Afro American Patrolmen’s League, are shown at a December 1969 news conference at the Capitol Theatre in Chicago

Members of the Black Panther Party march in the Loop in October 1969.

Members of the Black Panther Party march in the Loop in October 1969.

Children walk by Panther Power graffiti photographed by Stephen Shames

Children walk by Panther Power graffiti photographed by Stephen Shames

Black Panther Legacy (1969 AP)

Black Panther Legacy (1969 AP)

A 1970 flier advertising the Black Panthers' free breakfast program in Washington D.C.

A 1970 flier advertising the Black Panthers' free breakfast program in Washington D.C.

Meals are served to children at a Black Panther Party free breakfast.

Meals are served to children at a Black Panther Party free breakfast.

Shepard Fairey. Jesse Nubian. 2019. Courtesy of the Richard F. Brush Art Gallery. https://jstor.org/stable/community.27081944.

Shepard Fairey. Jesse Nubian. 2019. Courtesy of the Richard F. Brush Art Gallery. https://jstor.org/stable/community.27081944.

A boy gives raised fist salute in front of the New Haven courthouse during a demonstration by 15,000 people in1970. Bobby Seale, chairman of the party, and Ericka Huggins were on trial along for murder. Both were acquitted. Photograph: Stephen Shames

A boy gives raised fist salute in front of the New Haven courthouse during a demonstration by 15,000 people in1970. Bobby Seale, chairman of the party, and Ericka Huggins were on trial along for murder. Both were acquitted. Photograph: Stephen Shames

Flyer Promoting a Rally for Angela Davis Day, September 1971, Third World Women's Alliance, American. Collection of the Smithsonian National Museum of African American History and Culture.

Flyer Promoting a Rally for Angela Davis Day, September 1971, Third World Women's Alliance, American. Collection of the Smithsonian National Museum of African American History and Culture.

Black and white poster of Huey Newton and Bobby Seale. Black Panther Party, American, 1966. Collection of the Smithsonian National Museum of African American History and Culture.

Black and white poster of Huey Newton and Bobby Seale. Black Panther Party, American, 1966. Collection of the Smithsonian National Museum of African American History and Culture.

Alfredo Rostgaard, Cuban, Black Power, 1960s. National Museum of African American History and Culture, Smithsonian Institution. CC0.

Alfredo Rostgaard, Cuban, Black Power, 1960s. National Museum of African American History and Culture, Smithsonian Institution. CC0.

Huey Newton, Black Panther Minister of Defense, 1968, Blair Stapp, Black Panther Party, American.

Huey Newton, Black Panther Minister of Defense, 1968, Blair Stapp, Black Panther Party, American.

Poster for a Free Huey Rally at De Fremery Park, 1960s, Black Panther Party, American. Collection of the Smithsonian National Museum of African American History and Culture.

Poster for a Free Huey Rally at De Fremery Park, 1960s, Black Panther Party, American. Collection of the Smithsonian National Museum of African American History and Culture.

Evidence of Intimidation & Fascist Crimes by USA: The War on the Black Panther Party 1968 - 1969. Collection of the Smithsonian National Museum of African American History and Culture.

Evidence of Intimidation & Fascist Crimes by USA: The War on the Black Panther Party 1968 - 1969. Collection of the Smithsonian National Museum of African American History and Culture.

The Black Panther Movement at the Mangrove Nine march in 1970 [Photo courtesy of National Archives UK]

The Black Panther Movement at the Mangrove Nine march in 1970 [Photo courtesy of National Archives UK]

Activist, revolutionary and Black Power leader Michael de Freitas aka Michael X (1933-1975) on August 31, 1967 [Daily Express/Hulton Archive/Getty Images]

Activist, revolutionary and Black Power leader Michael de Freitas aka Michael X (1933-1975) on August 31, 1967 [Daily Express/Hulton Archive/Getty Images]

Stokely Carmichael speaks in support of Black Power at the Chalk Farm Roundhouse in London on June 25, 1967 [Serena Wadham/Keystone/Getty Images]

Stokely Carmichael speaks in support of Black Power at the Chalk Farm Roundhouse in London on June 25, 1967 [Serena Wadham/Keystone/Getty Images]

A special edition of Black Power Speaks featuring a message from Kwame Nkrumah (July 1968) [Photo courtesy of George Padmore Institute]

A special edition of Black Power Speaks featuring a message from Kwame Nkrumah (July 1968) [Photo courtesy of George Padmore Institute]

The owners of the Mangrove restaurant after their court appearance at Kensington Petty Sessions on August 15, 1970. (From left to right) Roy Hemmings, Jean Cabussel and Frank Crichlow. The restaurant was at the centre of a Black Power demonstration a

The owners of the Mangrove restaurant after their court appearance at Kensington Petty Sessions on August 15, 1970. (From left to right) Roy Hemmings, Jean Cabussel and Frank Crichlow. The restaurant was at the centre of a Black Power demonstration after being subjected to numerous police raids [Keystone/Hulton Archive/Getty Images]

Black Panther Movement at the Mangrove demonstration in 1970 [Photo courtesy of National Archives UK]

Black Panther Movement at the Mangrove demonstration in 1970 [Photo courtesy of National Archives UK]

Special edition of Black Power Speaks featuring a message from Kwame Nkrumah (July 1968} [Photo courtesy of George Padmore Institute]

Special edition of Black Power Speaks featuring a message from Kwame Nkrumah (July 1968} [Photo courtesy of George Padmore Institute]

A protest in solidarity with Anguilla against the British invasion of the island, supported by the Black Panther Movement, at Piccadilly Circus in London on March 24, 1969 [Daily Express/Pictorial Parade/Hulton Archive/Getty Images]

A protest in solidarity with Anguilla against the British invasion of the island, supported by the Black Panther Movement, at Piccadilly Circus in London on March 24, 1969 [Daily Express/Pictorial Parade/Hulton Archive/Getty Images]

Gus Hall (1972) Free Angela Davis And All Political Prisoners. Courtesy of the Richard F. Brush Art Gallery.

Gus Hall (1972) Free Angela Davis And All Political Prisoners. Courtesy of the Richard F. Brush Art Gallery.

Angela Nubian / Facing the Giant: 3 Decades of Dissent: Power And Equality. Courtesy of the Richard F. Brush Art Gallery.

Angela Nubian / Facing the Giant: 3 Decades of Dissent: Power And Equality. Courtesy of the Richard F. Brush Art Gallery.

What Are You Doing To Free Angela. 1970-1972. Courtesy of the Richard F. Brush Art Gallery.

What Are You Doing To Free Angela. 1970-1972. Courtesy of the Richard F. Brush Art Gallery.