Who invented the clock?
Which famous african American host a talk show, actress ,producer and philanthropist?
Who said the quote ( It's not the load that breaks you down, it's the way you carry it).
Who invented the Traffic Light?
ranked number?
Who said the quote (No person is your friend who demands your silence or denies your right grow).
Who invented the method for the production of carbon filaments used in lightbulbs?
Who said the quote (The time is always right to do what is right).
Who invented the an automatic lubricator for oiling the steam engines of locomotives and ships?
Who said the quote (It is easier to build strong children than repair broken men).
Who invented the Incubator?