Professor Æthelweard Langfellow's page

DC Example
10 Identifying the overall object a large pottery fragment came from.
15 Recognising a carefully crafted fake historical artefact.
20 Reading strata layers to identify how old an archaeological dig site is.
25 Recognising a small fraction of an artefact is out of place in the region it is found in despite a close resemblance to local relics.

History (Intellect): The research, collection, and analysis of facts concerning past events, including analyzing how specific past events have affected the present. Widely known historical events can be touched on with an unskilled check, but in-depth analysis, little-known facts, discerning common misconceptions from the truth, and the like require the character possess ranks in the skill.

DC Example
10 Knowing key figures in a well-known historical event, such as who opposed Napoleon at the Battle of Waterloo.
15 Understanding how a historical area of technological development has continued to impact society from then until the modern era.
20 Examining a period in history and sifting through its events to find clues that can help
solve a mystery.
25 Trace and argue for the impact on modern society of an obscure, seemingly nondescript person centuries ago by tracing the subject’s genealogy and following what his many descendants have done since.

Magic (Intellect): This covers magic, astrology, numerology, and similar topics. Aside from rituals and other arcane processes and methodologies, Expertise: Magic represents a history of the arcane arts, the culture surrounding it, and the people renowned (or despised) for its use.

NB: This skill does not address stage magic and arts of mundane illusion, such as sleight of hand.

DC Example
10 Being able to differentiate between real magic and stage magic during a performance supposedly using the latter.
15 Identifying a somewhat simple (so far as such things go) arcane ritual being cast by an opponent.
20 Delving into the history of a rare magical artifact in order to figure out how to use it correctly.
25 Casting a 10 point arcane ritual using what you find in an arcane library.

Mythology (Intellect): The study and understanding of myths, folklore, and legends, usually surrounding gods, epic heroes, supernatural beings, origin stories, and the like. In addition to knowledge of these tales, this Expertise can help better understand how mythology and actual history may sometimes overlap, especially in a world of super-beings and gods who walk among men.

DC Example
10 Knowing Odin is the Norse pantheon’s patriarch.
15 Understanding the differences between the Greek and Roman pantheons, including the different names for the various gods in each version of the similar mythologies, and how they were worshipped.
20 Preparing the proper protocol to meet a specific god who has decided to walk the mortal world as a hero