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Liquid Transmitter Invented
Elisha Gray invents the Liquid Transmitter for use with a telephone. -
First Patent Application for Acoustic Telegraphy
Thomas Edison files first patent application for acoustic telegraphy. -
World’s First Long Distance Telephone Call
Alexander Graham Bell makes the world’s first long distance telephone call, about 6 miles. -
First Two-Long Way Telephone Call
Alexander Graham Bell makes the first two-long way telephone call. -
Invention by Bell and Tainter
The photophone (radiophone) was invented by Alexander Graham Bell and Charles Sumner Tainter at Bell’s laboratory. -
.First Wireless Telephone
World’s first wireless telephone call between Bell and Tainter’s photophone -
.Opening Telephone Service
Opening of telephone service between New York and Boston -
.First Automatic Telephone Exchange
Almon Strowger creates the Strowger Switch the first Automatic Telephone Exchange. -
Opening Telephone Service
Opening of telephone service between New York and Chicago. -
Strowger Switch Goes Into Operation
The first Strowger Switch goes into operation in LaPorte, Indiana with 75 subscribers and a capacity and 99. -
Underground Cable
Boston-Washington underground cable commenced commercial service. -
First Transcontinental Telephone Call
The first transcontinental telephone call with Thomas Watson in San Francisco receiving a call from Alexander Graham Bell. -
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