Margaret Thatcher | 1925 - 2013

Margaret Thatcher, right, greets Queen Elizabeth II as the monarch arrives for the former prime minister’s 80th birthday party at the Mandarin Oriental hotel in central London.  (Odd Andersen / AFP/Getty Images)

President Ronald Reagan and British Prime Minister Margaret Thatcher at the White House in Washington.  (Gerald Penny / Associated Press)

British Prime Minister Margaret Thatcher and Russian leader Mikhail S. Gorbachev in London in 1984.  (Gerald Penny / Associated Press)

British Prime Minister Margaret Thatcher greets a crowd of Russians in Moscow during an official visit to the Soviet Union.  (Daniel Janin / AFP/Getty Images)

Margaret Thatcher, leader of Britain’s opposition Conservative Party, sits in a tank of the 7th regiment of the Royal Signals in Herford, West Germany.

British Prime Minister Margaret Thatcher swings from a hoist during a visit to the Royal Navy.  (Central Press / Getty Images)

Margaret Thatcher, the leader of the then out-of-power Conservative Party, makes a ‘victory’ sign outside her home in London.  (John Minihan / Getty Images)

British Prime Minister Margaret Thatcher sips tea at the opening of a motorway service area in South Mimms, Britain.  (Keystone / Getty Images)

Margaret Thatcher, then Margaret Roberts, a Conservative Party candidate for Britain’s Parliament, is photographed working at her job as a research chemist.

Baroness Margaret Thatcher watches the horses during Britain’s annual Royal Ascot race.  (Chris Jackson / Getty Images)

British Prime Minister Margaret Thatcher in a 1980 photo.  (Gerald Penny / Associated Press)