What Have I Learned

The history of television is what I'm happy I've learned so far.
Amateurs were making there own inventions to transmit sound. Then the fact that the patents were bought from citizens. The companies retained the rights and they used it for the growing demand of war purposes. Then after the war is when the entertainment purposes were embarked upon because the radio needed something else to do to survive.
I like to know how things were started, history was always my favorite subject in school.
So the beginning stages of the tv/radio are what I am happy to of learned so far :)