Eons before kindergarten became an integral part of our education system and a compulsory one at that, young children were made to slog at factories and mines, clean chimneys and work as household helps. They attended no school and were deprived of basic education. What is even scarier is that the children were considered adults by the tender age of seven. Thanks to a man named Friedrich Froebel who laid the foundation for pre-school education by inventing kindergarten. But he isn’t the only one. History is rife with many such powerful educational reformers and educators who with their vision, dedication, and hard work did everything in their power to make the world a better place. When we think of educators, names like Confucius, Aristotle, John Locke and Henry David Thoreau spring readily in our minds. But even America has homed educators who have rocked history by breaking down all barriers, opening new doors of understanding, and revolutionizing the teaching method. Dr. Temple Grandin, Anne Sullivan, Stephen Hawking, Elizabeth Blackwell, Emma Willard and Lisa Delpit are examples of some of America’s eminent educators who redefined education system in their own unique way. Let us explore their timeline, trivia, and interesting facts in the biographies below.