139
| Years: 135 136 137 138 – 139 – 140 141 142 143 | |
| Decades: 100s 110s 120s – 130s – 140s 150s 160s | |
| Centuries: 1st century – 2nd century – 3rd century | |
Events
Births
Deaths
- Zhang Heng, Chinese mathematician
Categories: 139
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