After eleven years as British Prime Minister, Margaret Thatcher has announced her resignation. Michael O’Sullivan assesses her political career. Report shows footage of Margaret Thatcher ...

That steely reputation was solidified in 1990, when Thatcher was ousted by her own party and resigned after more than a decade as Prime Minister of the United Kingdom.

The British Premier Margaret Thatcher has resigned. She issued a statement this morning saying Conservative election prospects would be better if one of her cabinet colleagues took over as prime ...

After her historic third election victory in 1987, things started to go wrong for Margaret Thatcher. By 1990, she had been ousted,to be succeeded as PM by John Major.

Margaret Thatcher Resigns As Prime Minister Margaret Thatcher's close colleagues remember her resignation speech.

In November 1990, Margaret Thatcher, the the longest-serving British prime minister of the 20th century and the first woman to hold that office, resigned.

Thatcher resigned before the end of her third term rather than risk losing an election — something that had never happened to her. The former world leader died in 2013.

November 1990 – Is forced to resign as prime minister after a leadership struggle within her own party. March 7, 1991 – Receives the US Medal of Freedom from President George Bush.

Thatcher Resigns Witness is the history programme for the BBC World Service. In today's edition we hear about Margaret Thatcher's last days in power - from a man was there alongside her.

We cheered when Margaret Thatcher resigned, too. But let’s not kid ourselves that a grey man successor will save us.

Margaret Thatcher speaks at the Conservative Party Conference in Blackpool, England, in October 1981. Photo by Bob Thomas/Getty Images. Margaret Thatcher, the only three-term prime minister of ...