Did you know galvanic currents were discovered in 1791 by an Italian Physicist name Luigi Galvani with the help of his associate Alessandro Volta? My daughter is doing a project on him for her class, so I'm living and breathing Luigi Galvani lately.
There's kind of a funny story behind the discovery of the electric current. Apparently Galvani was experimenting with static electricity on a frog he had been dissecting.
His assistant touched an exposed nerve on the frogs leg with a metal scalpel and it produced an electric charge. This was the foundation for bioelectricity, however Galvani doesn't receive much credit for it.