From LSWiki

Cosmology

   Class: Scholarly Skills
   Attribute: Intellect
   Pedagogy: Intellectual
   Practitioner Term: Cosmologist

   The knowledge of the nature and organization of the planes of existence into
   which the universe is divided.

   Development Information: The cosmology skill was created by Chaos and is
   maintained by Lost Souls; the source code was last updated Sun Jul 12 19:29:55 2009

Trainers

Hanoma: Olaris Wanders <139
Jhan: Hardrad <89
Shadow Tower: Sophratius <82
Traveler temple : Amon Tyrice 
Wanderer: The Wayfarer <139
Wanders Libraries: Armitage <55
Association required:
Ollin Tonatiuh: Nezcaluca
Guild required:
Ordo Ignis Aeternis: Itozuma Wanders <167
Zetesai: Gwale
Quest required: