Trivia: Who rose to leader of the U.K.’s Conservative Party in 1975?
Margaret Thatcher
Theresa May
Barbara Castle
Elizabeth Windsor
The correct answer is Margaret Thatcher
So why is this answer correct? : After the opposing Labour Party assumed power in 1974, Margaret Thatcher replaced Edward Heath as leader of the Conservative Party in February of the following year, becoming the first woman to lead the party. Thatcher would go on to become the first female prime minister of the United Kingdom on May 4, 1979, a position she would hold until 1990.