What was the basic, effective principle established by Benjamin Franklin for lightning protection?

Answer

A conductive rod connected to the earth to safely dissipate the electrical charge.

Franklin established the basic principle of using a conductive rod connected to the earth, which would attract the electrical charge and safely guide it away from a structure.

What was the basic, effective principle established by Benjamin Franklin for lightning protection?
inventioninventorTeslaelectricitylightning rod