| 3 Juni 1839 |
China
|
Rise of China
|
Destruction of opium at Humen
|
| 4 Juli 1054 |
China
|
Astronomy
|
The 1054 observation reveals stellar death
|
| 4 Juli 1054 |
China
|
Astronomy
|
Bureaucratic records preserve transient astronomy
|
| 4 Juli 1054 |
China
|
Astronomy
|
The guest star becomes the Crab Nebula
|
| 4 Juli 1054 |
China
|
Astronomy
|
Chinese astronomers record the guest star of 1054
|
| 21 April 899 v.Chr. |
China
|
Astronomy
|
The record helps measure changes in Earth's rotation
|
| 21 April 899 v.Chr. |
China
|
Astronomy
|
Modern orbital calculation tests an ancient text
|
| 21 April 899 v.Chr. |
China
|
Astronomy
|
An eclipse record preserves early Chinese astronomy
|
| 21 April 899 v.Chr. |
China
|
Astronomy
|
Chinese observers record the Double-Dawn eclipse
|
| 21 April 899 v.Chr. |
China
|
Mathematics
|
The eclipse demonstrates mathematics as administrative knowledge
|
| 21 April 899 v.Chr. |
China
|
Mathematics
|
Modern calculations test an ancient Chinese record
|
| 21 April 899 v.Chr. |
China
|
Mathematics
|
Calendar records preserve a rare annular eclipse
|
| 21 April 899 v.Chr. |
China
|
Mathematics
|
Chinese observers record the Double-Dawn eclipse
|
