Centuries: 1st century - 2nd century - 3rd century

Decades: 70s 80s 90s 100s 110s - 120s - 130s 140s 150s 160s 170s

Years: 121 122 123 124 125 - 126 - 127 128 129 130 131

• First year of the Yongjian era of the Chinese Han Dynasty.

• August 1, Pertinax, Roman Emperor