This led to a change in government to store food and grain reserves from one year to the next.

Christopher Columbus believed the world was not flat, that you could sail west to get to the east. At the time there was a lot of banditry against caravans traveleing between Europe and China, and merchants wanted a safer way to travel. Turns out planet Earth was MUCH larger than Columbus calculated, with “a new world” between Europe and his destination.

Can you imagine what the world today might be like if the New World had never been discovered?

During WW II, Radar was invented, developed, played a major role in that war.

After the war came the birth of modern aviation, which would not have been practical without radar to help manage traffic in the skies. Radar has also spawned a branch of Astronomy known as Radar or Radio Astronomy which has told us a lot more about the Universe than we could ever find out from Visual Telescopes.

Moveable clay type was invented in 1041 in China by Bi Sheng. That was the first step in mass communications and today’s information economy.

Joseph Glidden invented barbed wire in 1872. It made it practical to fence the west, ending “the tragedy of the commons.” The end result was cheap food. A people that struggles to feed itself is going to be violent and hateful.

The Roman Empire, that spread ideas like hygine and trade throughout the world.

The second world war…alot happened then. It shaped the world we live n now

The invention of the internet