jì​yuán

era

纪元 紀元 jì​yuán
era
The starting year of a calendar system or reign, such as the first year of an emperor's rule or the birth of Jesus in the Western calendar
epoch
The beginning of a new period in history or a major new stage in development

Frequency

Movie subtitles
0.180 per million appears in 0% of films
Written text
0.534 per million

Sources