July 10 Birthday

Famous Birthdays on July 10

• Nikola Tesla (1856)

  Serbian-American inventor and electrical engineer known for pioneering alternating-current power systems; his birth date is usually cited as July 10 under the Julian calendar used in his homeland at the time.

• Marcel Proust (1871)

  French novelist known for In Search of Lost Time, one of the longest and most influential novels in literary history.

• Arthur Ashe (1943)

  American tennis player and the first Black man to win the U.S. Open and Wimbledon men's singles titles.

• Jessica Simpson (1980)

  American singer and actress known for the album In This Skin and reality television.

This Day in History

• 1925 — The Scopes 'Monkey Trial' began in Dayton, Tennessee, testing a state law banning the teaching of evolution in public schools.

• 1940 — The Battle of Britain began, as the German Luftwaffe launched sustained air attacks against the United Kingdom.

• 1962 — Telstar 1, the first active communications satellite, was launched, enabling the first live transatlantic television broadcast.

• 1913 — A temperature of 134°F (56.7°C) was recorded at Furnace Creek in Death Valley, California, still recognized as the highest reliably measured air temperature on Earth.

• 1985 — French intelligence agents bombed and sank the Greenpeace vessel Rainbow Warrior in Auckland harbor, New Zealand, killing a photographer aboard and setting off a major diplomatic scandal once France's involvement was uncovered.

What July 10 Says About You

Nikola Tesla's birthday is a small lesson in how dates can slip depending on which calendar you're using. He was born on the night of July 9 into July 10, 1856, in the village of Smiljan, using the Julian calendar still in official use in that part of the Austrian Empire — which corresponds to July 22 on the Gregorian calendar most of the world uses today. Most biographical sources simply cite July 10 without the conversion, which is the convention followed here, but it's a genuinely interesting wrinkle for a man whose entire career was about making invisible, hard-to-pin-down forces (alternating current, radio waves) legible and usable. Telstar 1 launched on this date in 1962, another story about making the previously impossible instantly visible — its launch enabled the first live television signals to cross the Atlantic Ocean, collapsing a communications gap that had taken weeks by ship a century earlier. Marcel Proust, born July 10, 1871, spent roughly a decade and a half writing a single novel obsessed with the elasticity of memory and time, themes that resonate oddly well with a date whose most famous birthday already involves a calendar discrepancy. Memory and inner life are Cancer's signature traits, and July 10 falls squarely within the sign — a fitting match for Proust's entire literary project and for the emotional resilience Arthur Ashe showed throughout his career; Ashe, born the same date in 1943, broke racial barriers in professional tennis with a composed, understated intensity that never depended on outward flash. The numerology reduction of the 10th folds down to day number 1, associated with independence and pioneering drive — apt for Tesla's decades of solo, often underfunded experimentation and for the Scopes Trial, which began in Dayton, Tennessee on this date in 1925 and became a defining early test of how far a single legal case could reshape national conversation about science and education. Furnace Creek in Death Valley recorded the hottest reliably measured air temperature on Earth on July 10, 1913, a stark natural-world entry alongside the date's cluster of scientific and legal firsts. Ruby and larkspur, July's usual pairing, sit quietly in the background of all of it. Between a calendar-crossing birthday, a satellite launch, a landmark trial, and the planet's hottest recorded day, July 10 has an unusually literal relationship with pushing at the edges of what's measurable. The Rainbow Warrior bombing on this date in 1985 sits at the harsher end of that theme, a state intelligence operation against an environmental protest vessel that backfired badly once investigators traced the bombers back to the French government, turning a covert sabotage into one of the more embarrassing diplomatic scandals of the decade.