140
- This article is about the year 140. For other uses of 140, see 140 (number).
| Years: 136 137 138 139 – 140 – 141 142 143 144 | |
| Decades: 110s 120s 130s – 140s – 150s 160s 170s | |
| Centuries: 1st century – 2nd century – 3rd century | |
Events
- Pope Pius I succeeded Pope Hyginus.
- Ptolemy completes his Almagest (approximate date).
Categories: 140