A biography is the life story of an individual and usually includes an overview of their influence and achievements. Throughout history, there have been a large number of men and women who have changed society in one shape or form. In some cases, such as amazing medical innovators and scientific inventors, the world has been changed in positive ways. However, in the case of famous dictators and corrupt politicians, the world has sometimes been left in a state that is worse off. The biography portal tells the story of the world's most notable individuals throughout history.