📅 December 9 in the Time Tunnel
What happened on December 9? Travel back in time and find out — then test yourself with the quiz.
⏳ On this day in history
- 1851The first YMCA in North America opened in Montreal
- 1868The first traffic lights were put up outside the Houses of Parliament in London
- 1968Douglas Engelbart showed the computer mouse and more in a famous demo called "the Mother of All Demos"
🎂 Born on December 9
- 🐘 Jean de Brunhoff (1899) — creator of "Babar"
- 💻 Grace Hopper (1906) — computer scientist
See everyone born on December 9 →
December 9 quiz
In what year? 🏋️ The first YMCA in North America opened in Montreal
In what year? 🚦 The first traffic lights were put up outside the Houses of Parliament in London
In what year? 🖱️ Douglas Engelbart showed the computer mouse and more in a famous demo called "the Mother of All Demos"
Which famous person was born on December 9?