July 1946 – First demonstration (of which I’m aware) was a protest of the Bikini nuclear testing in the Pacific, the first nuclear tests since the bombings of Hiroshima and Nagasaki the year before

November 1960 – 1,000 Quakers surround the Pentagon in a silent vigil to commemorate the 300th anniversary of the Friends Peace Testimony

June 1962 – First civil disobedience at the Pentagon as 16 are arrested attempting to enter the “War Room” to protest nuclear weapons during the Committee for Nonviolent Action (CNVA) Walk for Peace

June 1965 – CNVA organized “speak-out” with 250 demonstrators protest the Vietnam War vigil and hand out leaflets at all entrances and even inside the Pentagon

November 1965 – Quaker Norman Morrison immolates himself outside Sec. of Defense Robert McNamara’s office in a protest of the Vietnam War

May 1967 – Boston to Pentagon Walk for Peace, organized by CNVA to protest the Vietnam War, included a vigil, a camp-in with tent (blocking the Joint Chiefs of Staff offices), being evicted and reentering over a 4-day period until 20 were eventually arrested

October 1967 – The most famous demonstration at the Pentagon was the Confront the War Makers action that included 50,000 people and resulted in 700 being arrested, which produced many iconic images and was the subject of Norman Mailer’s “Armies of the Night”

1969-1970 – Episcopal Peace Fellowship organized a series of masses as witness against the Vietnam War, including one on Nov. 13, 1969, which resulted in 186 being arrested

July 1970 – CNVA organizes the first blood pouring, which was at the Mall entrance

May 1971 – During the May Day actions hundreds of demonstrators marched from Washington, DC, to the Pentagon but were stopped and arrested by the police before getting there

October 1976 – During the final day of the Continental Walk for Disarmament and Social Justice, 700 people walked from the Lincoln Memorial to the Pentagon, where 53 were arrested including former Pentagon employee Dan Ellsberg

1976 to present – Jonah House and Catholic Worker periodically (at times daily) conduct actions to protest nuclear war and militarism by throwing blood and ashes, digging graves, etc.

April 1980 – As part of the Coalition for a Non-Nuclear World actions, 1,500 marched from the DoE to the Pentagon and 600 were arrested

November 1980 – Women’s Pentagon Action included 2,000 marchers who wove yarn across the entrances, and over 140 were arrested blocking three of the entrances

November 1981 – The second Women’s Pentagon Action included 3,500 women, 65 of whom were arrested

August 1985 – Thousands of people, as part of The Ribbon Project, encircled the Pentagon with 25,000 panels of cloth quilted by peace activists warning of the danger of nuclear war

October 1988 – CISPES organized more than 1,000 people in a demonstration to protest the U.S.-funded death squads in El Salvador

April 1997 – Dozens of people marched to the Pentagon to protest funding the School of Americas, resulting in the arrest of 15 people as they dug graves symbolizing the deaths of innocent civilians

October 1998 – WRL organizes A Day without the Pentagon that included a rally and blockade of Pentagon entrances; hundreds participated and 36 were arrested

September 2005 – Protesting the Iraq and Afghanistan Wars, demonstrators blockade Pentagon entrances at which about 40 are arrested