Some people live that touch only a few, while others have an impact that reverberates throughout the world for decades and even centuries. Those Who Made a Difference features inspiring stories about extraordinary people. While there are plenty of villains who've had an impact, the author focuses on those who left the world a better place. The individuals highlighted include: - Sojourner Truth, who is a devout Christian that speak about abolition of slavery, women's rights, and prison reform. She was convinced the reason she was free was to bring equality to those who were no longer slaves but still not equal;- Karl Landsteiner, who is honored for his discovery in 1901 of his outstanding work on the blood groups, for which he was awarded the 1930 Nobel Prize for Physiology or Medicine. The book features scores of others, too, such as Alexander Graham Bell, Benjamin Netanhayu, Charles Dickens, Dick Cheney, Eric Heiden, George Dewey, and many others, showing how ordinary people with a purpose can-and will- make a difference.