Society Tweaking
A lot of things can cause that heterogeneous mix of people we call society to stir. For one, change serves as a catalyst for improvement. Once something is invented or discovered, it is immediately scrutinized if it improves the quality of life of man.
People are People
If so, it is quickly assimilated and put into use by the society. So many inventions and discoveries have passed this. All of us can attest to it. One proof is technology which started from one part of the globe and spread all over the world.