Useless yet Interesting Trivia!

• Abraham Lincoln, who invented a hydraulic device for lifting ships over shoals, was the only US president ever granted a patent.
  
• According to the Gemological Institute of America, up until the 1730's, India was the only source for diamonds in the world.
  
• Antarctica is the only continent without reptiles or snakes.
  
• Australia is the only country that is also a continent.
  
• Baskin Robbins once made ketchup ice cream. This was the only vegetable flavored ice cream produced.