Hierarchy classification:

1. top of the aat hierarchies
2. Physical Attributes Facet
3. Attributes and Properties (hierarchy name)
4. [attributes and properties by specific type]
5. form attributes
6. size/dimensions
7. [size/dimensions by unit]
8. size/dimension units for duration
9. months
10. [months for Gregorian and Julian calendars]

Anotations

Scope note:

The first month of the year in the Julian and Gregorian calendars, containing 31 days and falling before February. It was named after Janus, the Roman god of all beginnings. January replaced March as the first month of the Roman year no later than 153 BCE.