Hierarchy classification:

1. top of the aat hierarchies
2. Agents Facet
3. People (hierarchy name)
4. people (agents)
5. [people by occupation]
6. [people in cross- and interdisciplinary fields]

Anotations

Scope note:

Those who specialize in arranging time into periods or divisions, and placing events in the sequence in which they occurred, either at a defined point or period in time, or in relation to an established time sequence.