Margaret Thatcher was the first female Prime Minister of the United Kingdom, serving from 1979 to 1990. Born on October 13, 1925, in Grantham, England, she made history on May 4, 1979, when she was appointed Prime Minister, becoming the first woman to hold the office in the UK and Europe. Thatcher’s leadership marked a transformative period in British politics, characterized by free-market reforms and a bold stance on national and international issues. Her tenure was marked by significant economic and social reforms, including the Falklands War and the implementation of policies known as “Thatcherism”. She served three consecutive terms, making her the longest-serving British Prime Minister of the 20th century .