It’s a small world. Fire up your computer and read on a website in Germany. Turn on the TV and watch live broadcasts from Ukraine. Start an online game and play with virtual gamers anywhere in the world. Reach your iphone and tweet to thousands and millions of people.
It all started with radio. The system used to transfer information over the electromagnetic airwaves.
Here are some interesting links describing some radio history.
A Short History of Radio https://transition.fcc.gov/omd/history/radio/documents/short_history.pdf
The History of the Car Radio https://www.titlemax.com/articles/the-history-of-the-car-radio/