Wheel Years is an early astronomical-agricultural calendar devised in the civilisation of Traithe, some time in the Jade Epoch, the ninth millennium BME. It measured the change of seasons by cycles of the moons, stars and planets, helping plan the planting and harvesting of crops, and predicting the dangers of storm tide season.
This is in a series of articles about calendarsplugin-autotooltip__small plugin-autotooltip_bigCalendars
Many different calendars have been used during Helevos' long history. Most societies used individual calendars starting either with their founding, or from some religious or political event. This made comparative history a confusing subject, particularly with the passage of time. and dating systems.
The Wheel Years calendar was the precursor of the more systematic Hirerk Moonscale, the basis of the modern calendar.