After fighting for the vote for 30 years, Carrie Chapman Catt was restless. As president of the National American Woman Suffrage Association, Catt devised a diplomatic plan.
Ted Fujita was a Japanese-American engineer turned meteorologist. His lifelong work on severe weather patterns earned Fujita the nickname “Mr. Tornado".
In 1901, government chemist Harvey Wiley set out to prove that Americans were being harmed by chemicals in food. Wiley organized volunteers for human trials to test the effects of chemical food preservatives.