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.
After three years of neutrality, America abandoned the sidelines and threw its weight behind the Allies in the Great War.
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.
