Inventions, firsts, and turning points tied to today’s date — each one sourced and dated.
The physicist who rewrote space, time, and gravity died in Princeton on April 18, 1955, refusing surgery to prolong his life.
A magnitude-7.9 rupture and the firestorm that followed destroyed most of San Francisco and killed thousands in 1906.
On the night of April 18, 1775, a Boston silversmith rode to Lexington to warn that British regulars were on the march.
