Today in Radio History

March 10th

Harriet Tubman Day (LINK) 

On this day in 1876, Alexander Graham Bell successfully transmits by telephone. He spilled acid and called 'Mr. Watson, come here, I want you'.

On this day in 1891, Almon Strowger, an undertaker in Topeka, Kansas, patents the strowger switch, a device which led to the automation of telephone circuit switching.  

On this day in 1922, 'Radio Sweeping Country-Million Sets in Use' is the headline in Variety

On this day in 1922, KLZ-AM, Denver, Coloradio, began broadcasting.

On this day in 1940, 1st U.S. opera telecast, W2XBS, New York City, I Pagliacci.

On this day in 1955, "The Silver Eagle" program was broadcast for the last time on Radio.