123
Centuries: 1st century - 2nd century - 3rd century
Decades: 90s - 100s - 110s - 120s - 130s - 140s - 150s - 160s - 170s - 180s - 190s - 200s
Years: 118 119 120 121 122 123 124 125 126 127 128
Events:
- Roman Emperor Hadrian's villa at Tivoli was built.
- Chinese scientist Zhang Heng corrected the calendar to bring it into line with the seasons.
- Antinous becomes Hadrian's lover.
Deaths:
