BOSTON — Lined pages with a doodle of the Liberty Bell and a CIA document outlining a Mafia-connected plan to assassinate Fidel Castro for $150,000 are among thousands of Robert F. Kennedy documents made public Thursday.

The National Archives and Records Administration and the John F. Kennedy Presidential Library in Boston released some 2,700 pages of documents Kennedy compiled as attorney general from 1961 to 1964, offering a glimpse into Cold War decision-making.

Though the documents, released just shy of the 50th anniversary of the Cuban missile crisis, don't rewrite Cold War history, they do provide insight into the personal thoughts of the era's key figures, historians say.

Kennedy advised John F. Kennedy during the Bay of Pigs invasion and the missile crisis, key moments during his brother's presidency.

His title as attorney general "disguised his real position, which was the closest adviser to the president and the president's confidant and the person the president trusted most," said journalist and historian Michael Dobbs, who blogs for Foreign Policy. "That's the interesting point of this, that he kind of reflects his brother's thinking."

The seven boxes of newly released material include telegrams, reports, meeting transcripts and handwritten notes by Kennedy, some with doodles and quotes in the margins.