| 4 December 1639 |
United Kingdom
|
Mathematics
|
Horrocks observes a transit of Venus
|
| 4 December 1639 |
United Kingdom
|
Mathematics
|
A corrected planetary model produces a successful prediction
|
| 4 December 1639 |
United Kingdom
|
Mathematics
|
The transit supports measurement of the solar system
|
| 4 December 1639 |
United Kingdom
|
Mathematics
|
Small networks contribute to mathematical astronomy
|