Dots, Dashes, and Inside Jokes: The Secret Language America's Railroad Telegraphers Invented Before Texting Existed
Long before anyone typed 'LOL' into a phone, Morse code operators strung across America's vast railroad network were inventing their own shorthand language — codes, abbreviations, and inside phrases that traveled coast to coast along copper wire. Linguists now consider it a direct ancestor of modern digital slang, and at least one of their inventions is still in daily use today.