Did you know that Franklin Roosevelt was the first president in history to travel on an airplane while in office? He went to Casablanca, Morocco to meet with Winston Churchill in December, 1943. Now we see President Obama waving from the steps of Air Force One as he jets around the world. 
In today's world, it is difficult to remember the days, or imagine them if you were born in the 70s or later, when airplane travel was new and amazing. When I was a child, airplane travel was something special. We didn't take it for granted, because it was new and exciting for regular folks to fly anywhere. These days we can hardly get through airport security to even board a plane!
Air travel revolutionized the world. Can you name 5 inventions that changed the world which were completely new? What about 5 things which have become part of everyday life which were not around 50 years ago? Send in your list!