When did Benjamin Franklin invent the lighting rod?

Answer Benjamin Franklin came up with the idea for his lightning rod in 1750, but he didn’t finish perfecting it until 1753. Lightning rods divert electricity from lightning into the ground, so it doesn... Read More »

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When did Benjamin Franklin invent bifocals?

Famed inventor, statesman and founding father Benjamin Franklin invented bifocals in 1784. Franklin, who at the age of 79 wore spectacles, conceived of the idea when he grew tired of having to swap... Read More »

When did Benjamin Franklin discover bifocals?

Benjamin Franklin (1706-1790) is thought to have worn glasses from the time he was 25 years old. He is generally credited with having conceived the idea for bifocals in the early 1760's, according ... Read More »

When was my Benjamin Franklin air rifle made?

The Benjamin Franklin air rifle manufacturing date can be identified by the serial number and model number. Benjamin rifle models were made mainly between 1982 and 1985. Use the link in the referen... Read More »

When did Benjamin Franklin discover electricity?

Benjamin Franklin discovered electricity in 1752 when he flew a kite during stormy weather. His kite contained a key that was attached to a string, which was, in turn, attached to a wire. Franklin ... Read More »