Margaret Thatcher
Margaret Thatcher was Prime Minister of the United Kingdom from 1979 to 1990, becoming the first woman to hold this public office. A Soviet journalist called her “Iron Lady” because of her strength of character and sharp mind. Margaret was mainly involved in actions to reduce the unemployment rate in the country, being so supported by the people that she managed to remain in British history as the longest-serving leader in this position.
If we don’t want to reduce the number to 10, I’d also include Harriet Tubman.
I’d replace Diana with Elizabeth I.
On the basis of Lincoln calling her “the little lady who started the big war” and because “Uncle Tom’s Cabin” was a worldwide bestseller that sold more copies world wide in English and in translations, I would also include Harriet Beecher Stowe. And because Hanna Arendt included her in her book “Men in Dark Times,” I would also include Rosa Luxemberg. And what about Florence Nightingale and Margaret Sanger?