Historical biography archive · Updated 2026-11-03

Daniel Ellsberg Biography and Timeline

Follow Daniel Ellsberg through 39 dated historical records for United States of America.

Daniel Ellsberg, historical timeline

A chronological timeline drawn from matching World History Database records.

39Distinct records
1 of 1Page
1967–1973Years on this page

1967

Pentagon Papers

Warfare / Vietnam War, 2nd

Has access to the complete set of documents which reveal that the Government had knowledge all along that the war would not likely be won, and that continuing the war would lead to many times more casualties than admtted. Contributes to a top-secret study of classified documents regarding the conduct of the Vietnam War that had been commissioned by Defence Secretary McNamara

Role range: 1960-1975

1969

Copying of Pentagon Papers Begins

RAND Analyst · Los Angeles · Warfare / Vietnam War, 2nd

Ellsberg begins secretly reproducing portions of the classified Pentagon Papers while associated with RAND.

Role range: 1960-1975

RAND Document Reproduction

RAND Analyst · Los Angeles · Warfare / Vietnam War, 2nd

Ellsberg reproduces classified study materials outside normal government channels as he prepares copies for possible disclosure.

Role range: 1960-1975

Pentagon Papers

Warfare / Vietnam War, 2nd

With the assistance of his former RAND Corporation colleague, Anthony Russo, Ellsberg secretly made several sets of photocopies of the classified documents he had access to - these became known as the Pentagon Papers

Role range: 1960-1975

1970

Pentagon Papers Outreach

Analyst · RAND analyst · Washington · Warfare / Vietnam War, 2nd

Tries to persuade sympathetic senators to release the Pentagon Papers

Role range: 1960-1975

Fulbright Disclosure Effort

RAND Analyst · Washington · Warfare / Vietnam War, 2nd

Ellsberg says he tries to furnish Pentagon Papers material to Senator J. William Fulbright in hopes of congressional disclosure.

Role range: 1960-1975

Goodell Disclosure Effort

RAND Analyst · Washington · Warfare / Vietnam War, 2nd

Ellsberg says he tries to furnish Pentagon Papers material to former Senator Charles Goodell while seeking official disclosure.

Role range: 1960-1975

McGovern Disclosure Effort

RAND Analyst · Washington · Warfare / Vietnam War, 2nd

Ellsberg approaches Senator George McGovern as part of his effort to have elected officials disclose the classified study.

Role range: 1960-1975

Pentagon Papers Disclosure Strategy

RAND Analyst · United States · Warfare / Vietnam War, 2nd

Ellsberg seeks a way to make the classified history public through elected officials before turning to the press.

Role range: 1960-1975

1971

Pentagon Papers

Warfare / Vietnam War, 2nd

For 15 days, the Times was prevented from publishing its articles by court order requested by the Nixon administration, meanwhile, Ellsberg leaks the documents to The Washington Post and 17 other newspapers. Ellsberg releases the documents to New York Times correspondent Neil Sheehan & On Sunday, June 13, 1971, the Times publishes the first of nine excerpts and commentaries on the 7,000 page collection

Role range: 1960-1975

Pentagon Papers

Warfare / Vietnam War, 2nd

In February 1971, Ellsberg discussed the study with The New York Times reporter Neil Sheehan, and gave 43 of the volumes to him in March

Role range: 1960-1975

Meeting with Neil Sheehan

Former Defense Analyst · United States · Warfare / Vietnam War, 2nd

Ellsberg meets New York Times reporter Neil Sheehan in March after efforts to secure official disclosure fail.

Role range: 1960-1975

Pentagon Papers

Politics / Watergate

The New York Times begins publishing material from the Pentagon Papers leaked by Ellsberg, intensifying Nixon administration concern about unauthorized disclosures.

Pentagon Papers

Warfare / Vietnam War, 2nd

The New York Times began publishing excerpts on June 13, 1971; the first article in the series was titled "Vietnam Archive: Pentagon Study Traces Three Decades of Growing US Involvement". The study was dubbed The Pentagon Papers during the resulting media publicity. Street protests, political controversy, and lawsuits followed

Role range: 1960-1975

Pentagon Papers Leak

Analyst · Former Defense Department analyst · Washington · Warfare / Vietnam War, 2nd

Leaked Pentagon Papers begin appearing in the New York Times

Role range: 1960-1975

Pentagon Papers

Warfare / Vietnam War, 2nd

On June 18, 1971, The Washington Post began publishing its own series of articles based upon the Pentagon Papers; Ellsberg gave portions to editor Ben Bradlee

Role range: 1960-1975

Pentagon Papers Indictment

Former Defense Analyst · Los Angeles · Politics / Watergate

A federal grand jury indicts Ellsberg on charges concerning retention and conversion of classified Pentagon Papers documents.

Pentagon Papers

Warfare / Vietnam War, 2nd

Admits to delivering the Pentagon Papers to New York Times

Role range: 1960-1975

Pentagon Papers

Warfare / Vietnam War, 2nd

The Supreme Court ordered publication of the Times to resume freely (New York Times Co. v. United States). Although the Times did not reveal Ellsberg as their source, he went into hiding for 13 days afterwards, suspecting that the evidence would point to him as the source of the theft

Role range: 1960-1975

Watergate

Government / Republican Party Government

Howard Hunt burglarizes the office of the psychiatrist of Daniel Ellsberg, the leaker of the secret "Pentagon Papers" about the Vietnam War.

Watergate

Politics / Watergate

Howard Hunt burglarizes the office of the psychiatrist of Daniel Ellsberg, the leaker of the secret "Pentagon Papers" about the Vietnam War.

Pentagon Papers

Government / Republican Party Government

Howard Hunt burgals the office of the psychiatrist of Daniel Ellsberg, the leaker of the secret "Pentagon Papers" about the Vietnam War

Watergate

Government / Republican Party Government

Howard Hunt burgals the office of the psychiatrist of Daniel Ellsberg, the leaker of the secret "Pentagon Papers" about the Vietnam War

Watergate

Politics / Watergate

Howard Hunt burgals the office of the psychiatrist of Daniel Ellsberg, the leaker of the secret "Pentagon Papers" about the Vietnam War

Pentagon Papers

Government / Republican Party Government

The Pentagon Papers, officially titled United States – Vietnam Relations, 1945–1967: A Study Prepared by the Department of Defense.

Pentagon Papers

Government / Republican Party Government

The papers were released by Daniel Ellsberg who had worked on the study, and first brought to the attention of the public on the front page of The New York Times.

Pentagon Papers

Government / Republican Party Government

is a United States Department of Defense history of the United States' political-military involvement in Vietnam from 1945 to 1967.

Pentagon Papers

Politics / Watergate

Ellsberg is initially charged with offenses including conspiracy, theft and violations of the Espionage Act arising from his disclosure of the Pentagon Papers.

Pentagon Papers

Politics / Watergate

For his disclosure of the Pentagon Papers Ellsberg was initially charged with conspiracy espionage and theft of Government property

Pentagon Papers

Politics / Watergate

The Pentagon Papers describe previously undisclosed expansion of United States military activity involving Cambodia, Laos and North Vietnam during the Vietnam War.

Pentagon Papers

Politics / Watergate

The Pentagon Papers document previously undisclosed aspects of United States decision-making and military involvement in the Vietnam War.

Pentagon Papers

Politics / Watergate

The charges against Ellsberg are later dismissed after government misconduct, including unlawful efforts by White House operatives to discredit him, becomes known.

Pentagon Papers

Politics / Watergate

The papers revealed that the U.S.

Pentagon Papers

Politics / Watergate

but the charges were later dropped after prosecutors investigating the Watergate Scandal soon discovered that the staff members in the Nixon White House had ordered the so-called White House Plumbers to engage in unlawful efforts to discredit Ellsberg

Pentagon Papers

Politics / Watergate

had secretly enlarged the scale of the Vietnam War with the bombings of nearby Cambodia and Laos, coastal raids on North Vietnam, and Marine Corps attacks, none of which were reported in the mainstream media.

McCloskey Pentagon Papers Documents

Former Defense Analyst · Washington · Warfare / Vietnam War, 2nd

Ellsberg provides Pentagon Papers documents to Representative Paul McCloskey while continuing attempts to obtain congressional disclosure.

Role range: 1960-1975

1973

Pentagon Papers Trial Opens

Defendant · Los Angeles · Politics / Watergate

Ellsberg goes on trial with Anthony Russo over the copying and disclosure of the Pentagon Papers.

Pentagon Papers Trial

Los Angeles · Politics / Watergate

The federal case against Ellsberg and Anthony Russo is dismissed after government misconduct, including illegal evidence gathering connected with the Fielding break-in, is exposed.

Dismissal of Pentagon Papers Charges

Defendant · Los Angeles · Politics / Watergate

Judge William Byrne dismisses the case against Ellsberg after government misconduct and illegal evidence gathering are exposed.

Records, sources and methodology

These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.