Margaret Thatcher, the former Prime Minister of the United Kingdom, was widely known as the 'Iron Lady' due to her strong leadership style and unwavering determination.

Barack Obama made history in 2008 by becoming the first African American president of the United States, serving two terms in office.

Mohandas Gandhi, also known as Mahatma Gandhi, was the preeminent leader of the Indian independence movement and is widely recognized for his philosophy of nonviolent civil disobedience.

Selma Lagerlöf, a Swedish author, was the first woman to receive the Nobel Prize in Literature in 1909, recognized for her vivid and imaginative storytelling.

Albert Einstein, a renowned physicist, revolutionized our understanding of space, time, and gravity with his theory of relativity, fundamentally changing our perception of the universe.

Neil Armstrong, an American astronaut, achieved a historic milestone in 1969 by becoming the first person to walk on the moon during the Apollo 11 mission.

Abraham Lincoln, the 16th President of the United States, is renowned for his leadership during the American Civil War and his efforts to preserve the Union and abolish slavery.

Sandra Day O'Connor made history in 1981 by becoming the first female justice of the Supreme Court of the United States, serving for over 25 years.

Maximilien Robespierre, a prominent figure during the French Revolution, led the Reign of Terror, a period of intense political upheaval and violence.

Wangari Maathai, a Kenyan environmental and political activist, became the first African American woman to receive the Nobel Peace Prize in 2004 for her contributions to sustainable development and women's rights.

Fidel Castro, a Cuban revolutionary and politician, led the Cuban Revolution and served as the Prime Minister and President of Cuba for over 40 years.

Robert Peary, an American explorer, is credited with reaching the North Pole in 1909, although his claim remains controversial.

George Washington, the first President of the United States, led the Continental Army to victory in the American Revolution, securing independence from British rule.

Marie Curie, a Polish and naturalized-French physicist and chemist, became the first woman to win the Nobel Prize in Physics in 1903 for her research on radioactivity.

Vladimir Lenin, a Russian revolutionary and politician, led the Bolshevik Party to victory in the Russian Revolution and became the first leader of the Soviet Union.