Samuel F.B. Morse's Telegraph; and slavery conditions in early U.S. described by his father, Jedediah Morse, "Father of American Geography" - American Minute with Bill Federer
He demonstrated the telegraph for the first time on May 24, 1844, allowing Annie Ellsworth, the young daughter of a friend, to chose the message. She selected a verse from the Bible, Numbers 23:23,
"What hath God wrought?"