Inventions, firsts, and turning points tied to today’s date — each one sourced and dated.
A 3M chemist made an adhesive nobody wanted — until a colleague used it to keep a bookmark from falling out of his hymnal.
On April 6, 1909, Robert Peary recorded reaching the North Pole, a triumph that historians now believe fell short.
On April 6, 1896, athletes from 14 nations revived a tradition dormant for 1,500 years before 80,000 spectators in Athens.
