📅 January 31 in the Time Tunnel
What happened on January 31? Travel back in time and find out — then test yourself with the quiz.
⏳ On this day in history
- 1862Alvan Graham Clark discovered Sirius B, a small "white dwarf" star
- 1958Explorer 1, the first US satellite, was launched — it discovered the Van Allen belts around Earth
- 1961Ham the chimpanzee flew into space and came back safely
- 1971The astronauts of Apollo 14 launched on their mission to the Moon
🎂 Born on January 31
- ⚾ Jackie Robinson (1919) — baseball player who broke the color barrier
See everyone born on January 31 →
January 31 quiz
In what year? 🌟 Alvan Graham Clark discovered Sirius B, a small "white dwarf" star
In what year? 🛰️ Explorer 1, the first US satellite, was launched — it discovered the Van Allen belts around Earth
In what year? 🐒 Ham the chimpanzee flew into space and came back safely
Which famous person was born on January 31?