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File, Associated Press
FILE - U.S. President Ronald Reagan, right, and Britain's Prime Minister Margaret Thatcher, share a laugh during a break from a session at the Ottawa Summit in this file photo dated July 21, 1981, at Government House in Ottawa, Canada. Personal papers from 1981 released Saturday March 17, 2012, by the Thatcher archive at Cambridge University in England, reveal that Thatcher was fascinated by U.S. President Reagan, and that she snatched and kept a page of his doodles from this G7 summit in Ottawa. Reagan left the piece of paper adorned with his sketches, sitting on a table at the Ottawa meeting when Margaret Thatcher picked it up and kept it, it is revealed in her papers released Saturday.

LONDON — Milestones in the life and career of Britain's former Prime Minister Margaret Thatcher:

Oct. 13, 1925: Born in Grantham, central England.

June 1947: Graduates from Oxford with chemistry degree.

Dec. 13, 1951: Marries wealthy oil executive Denis Thatcher.

Aug. 15, 1953: Gives birth to twins, Mark and Carol.

June 1, 1954: Qualifies as lawyer.

Oct. 8, 1959: Elected to Parliament.

June 20, 1970: Becomes education secretary.

Feb. 11, 1975: Elected leader of Conservative Party.

May 3, 1979: Wins national elections, becomes Europe's first female prime minister.

March 1, 1981: Refuses to concede demands of Irish Republican Army convicts for prisoner-of-war status in Northern Ireland, inspiring a hunger strike. Ten inmates starve to death over following seven months.

Sept. 14, 1981: Dumps or reassigns most of her moderate ministers in Cabinet reshuffle.

April 2, 1982: Argentina invades Falkland Islands, a British territory in the South Atlantic. Thatcher sends a naval task force that recovers the islands after a 74-day war.

June 9, 1983: Wins second term.

Oct. 12, 1984: Survives IRA assassination bid after time bomb explodes near her room in hotel hosting Conservative Party conference. Five others killed, 32 wounded.

Dec. 15, 1984: Becomes first Western leader to meet Mikhail Gorbachev as he visits London prior to becoming Soviet Union's leader.

Dec. 19, 1984: Signs accord with Chinese Prime Minister Zhao Ziyang to cede the British colony of Hong Kong to China in 1997.

Nov. 15, 1985: Signs Anglo Irish Agreement that gives the Republic of Ireland a role in Northern Ireland for the first time. Move infuriates province's Protestant majority.

Jan. 9, 1986: Defense Secretary Michael Heseltine resigns in dispute over moves to rescue the failing Westland helicopter company. Triggers a Cabinet crisis that pushes Thatcher close to resignation.

April 15, 1986: Allows U.S. to bomb Libya with aircraft based in Britain.

Aug. 1, 1986: Cabinet unanimously supports her resistance to sanctions against South Africa.

March 28, 1987: Travels to Moscow for talks with Gorbachev, strengthens role as key player in arms control negotiations.

June 11, 1987: Wins third term.

Jan. 3, 1988: Becomes Britain's longest continuously serving prime minister of 20th century.

Nov. 22, 1990: Announces resignation after party revolt.

Nov. 28, 1990: Succeeded by John Major as prime minister.

June 26, 1992: Becomes Baroness Thatcher of Kesteven, a member of the unelected House of Lords with a lifetime title.

March 22, 2002: Ends public speaking after a series of strokes.

June 26, 2003: Her husband dies.

April 8, 2013: Dies of stroke.