Answer:
Thomas A. Watson, one of Bell's assistants, was trying to reactivate a telegraph transmitter. Hearing the sound, Bell believed that he could solve the problem of sending a human voice over a wire. He figured out how to transmit a simple current first, and received a patent for that invention on March 7, 1876.
Explanation: Technology is always evolving, and so have humans. They've gotten even smarter so therefore we've gathered even better resources to enhance and build what we now call,smartphones.
