The Brooklyn Bridge, the construction of which began in 1869 and took 14 years to finish, used 15,000 miles of hot galvanized iron to form the cables that suspended the bridge from its two large towers.
Why did it take so long for automobile parts to be galvanized? First, cars were made of thick steel, so rust did not eat through the body. Also, manufacturers constantly came up with new models that encouraged people to change cars frequently before rust became apparent. When cars were made lighter to improve gas consumption, rusting became a problem, and it was successfully addressed by Japanese manufacturers who galvanized the steel used.
So, it all started with Galvani’s mistaken ideas about “animal electricity.” But he wasn’t totally wrong. I refer you to the electric eel. And as far as we are concerned, nerve cells do transmit information by generating electrical signals. Perhaps you will now be galvanized to look into electrophysiology further.