When Did Benjamin Franklin Invent the Lightning Rod?

Benjamin Franklin invented the lightning rod in 1749 while conducting experiments with electricity. Since Franklin’s invention, lightning rods have been mounted on elevated buildings and other tall structures to prevent fire damage and electrocution.

Lightning rods have been found on ancient buildings in Sri Lanka that date back to approximately 400 B.C. However, Benjamin Franklin was the first to test the hypothesis that drew a correlation between electricity and lightning.

A lightning rod is a metal object that is used to conduct lightning to the ground. The process of intercepting lightning prevents the current from passing through the structure and potentially causing a fire. The lightning rod is sometimes called a “lightning attractor” or “Franklin rod.”