It was the Puritans the ones who established it
Answer:
It is a Electromagnetic Wave, which does not need a medium to travel through, so radio waves travel through space or a vacuum.
Explanation:
Types of Electromagnetic Waves
Radio Waves. Radio waves have the longest wavelengths of all the electromagnetic waves. ...
Microwaves. Microwaves are shorter than radio waves with wavelengths measured in centimeters. ...
Infrared. Between microwaves and visible light are infrared waves. ...
Visible light. ...
Ultraviolet. ...
X-rays. ...
Gamma rays. ...
The trade of cotton, hope this helps