Inventions, firsts, and turning points tied to today’s date — each one sourced and dated.
On a rare planetary alignment, one probe set off to visit every giant world in our solar system.
A four-ton spacecraft began an eleven-month trek that ended in the first long-lived landing on Mars.
On a single August night in 1968, Warsaw Pact armies rolled into Czechoslovakia and snuffed out a fragile experiment in reform.
The cannon-blasting tribute to Russia's defeat of Napoleon roared to life at a Moscow exhibition hall in the summer of 1882.
