181

align="center" colspan=2 | Years:
177 178 179 180 - 181 - 182 183 184 185

align="center" colspan=2 | Decades:
150s 160s 170s - 180s - 190s 200s 210s

align="center" | Centuries:
1st century - 2nd century - 3rd century

Events

Antonine Wall is overrun.
Roman cavalry general Lucius Artorius Castus is assigned to Britannia - possible source for the Arthurian legends
The volcano associated with Lake Taupo in New Zealand erupts, the largest eruption on Earth in the last 5000 years. The effects of this eruption were seen as far away as Rome and China.

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