Thatcher studied chemistry at Somerville College, Oxford, and worked briefly as a research chemist before becoming a barrister. She was elected Member of Parliament for Finchley in 1959. Edward Heath appointed her secretary of state for education and science in his 1970–1974 government. In 1975, she defeated Heath in the Conservative Party leadership election to become leader of the opposition, the first woman to lead a major political party in the UK.
Thatcher studied chemistry at Somerville College, Oxford, and worked briefly as a research chemist before becoming a barrister. She was elected Member of Parliament for Finchley in 1959. Edward Heath appointed her secretary of state for education and science in his 1970–1974 government. In 1975, she defeated Heath in the Conservative Party leadership election to become leader of the opposition, the first woman to lead a major political party in the UK.