Martin Luther King's view on equality and its effect on America makes him one of the most influential activists of all time. The third Monday of every January is observed as 'Martin Luther King Jr. Day' and is an American federal holiday.
Theoretical physicist Albert Einstein is considered one of the greatest minds humanity has seen in recent history. While some of his theories and principles are pillars of modern physics, others revolutionized physics and led to the development of quantum mechanics.
One of the greatest painters of all time, Leonardo da Vinci continues to influence modern artists. His paintings, the most famous being 'Mona Lisa,' attract art lovers from all over the world.