On March 10, 1876, Alexander Graham Bell conducted a successful experiment with the telephone. This breakthrough, during which he uttered his famous directive to his assistant, Thomas Watson, is recorded in the March 10 entry in his 1875-1876 Lab Notebook.
Mr. Watson — come here — I want to see you.
March 10 1876 entry, Notebook by Alexander Graham Bell, from 1875 to 1876. Alexander Graham Bell Family Papers
That same day, an ebullient Bell wrote his father of his “great success” and speculated that “the day is coming when telegraph wires will be laid on to houses just like water and gas — and friends converse with each other without leaving home.” Born on March 3, 1847, in Edinburgh, Scotland, Alexander Graham Bell was the son and grandson of authorities in elocution and the correction of speech. Educated to pursue a career in the same specialty, his knowledge of the nature of sound led him not only to teach the deaf, but also to invent the telephone.