Inventions, firsts, and turning points tied to today’s date — each one sourced and dated.
On June 30, 1908, an asteroid burst in the sky over Siberia and knocked down an estimated 80 million trees.
On June 30, 1905, Annalen der Physik received the paper in which an unknown patent clerk redefined space and time.
On June 30, 1859, Charles Blondin strolled a rope above the Niagara gorge as 25,000 spectators held their breath.
