Centuries: 1st century - 2nd century - 3rd century
Decades: 120s 130s 140s 150s 160s - 170s - 180s 190s 200s 210s 220s
Years: 172 173 174 175 176 - 177 - 178 179 180 181 182
Events
- A systematic persecution of Christians begins in Rome under Roman Emperor Marcus Aurelius. Many Christians worship secretly in underground catacombs.
- Chinese troops suffer a crushing defeat against a confederacy of Central Asian tribes led by the Xianbei (see Wu Hu).
- S. Polycarpus, S. Blandina and other martyrs in Lyons