Inventions, firsts, and turning points tied to today’s date — each one sourced and dated.
Before any orbiter reached space, Enterprise flew piggyback on a modified Boeing 747 to prove the stack could fly.
Comparing photographic plates taken nights apart, Clyde Tombaugh caught a tiny dot shifting against the stars.
Mark Twain's vernacular masterpiece arrived in the U.S. in 1885 and was barred from a library within a month.