Margaret Thatcher's political career challenged gender norms by breaking barriers in a male-dominated political landscape, becoming the first female Prime Minister of the United Kingdom. Known as the "Iron Lady", she held firm views on free-market policies and governance. Thatcher exemplified a strong, assertive leadership style that defied traditional expectations of women in politics. Her tenure prompted discussions around gender and leadership, proving that women could hold powerful positions and make impactful decisions in politics.