where was the telephone invented

The telephone was principally invented in Boston, Massachusetts, USA, by Alexander Graham Bell in the mid‑1870s, with key earlier conceptual and design work done at his family home in Brantford, Ontario, Canada. Because of this cross‑border development, Brantford is often called “The Telephone City,” while Boston is where the first successful intelligible telephone call (“Mr. Watson, come here, I want you!”) was made on March 10, 1876.