Please consult the following list for explanation of the letter marks in the body of your test or paper.

Acc  
Accuracy.  There is some problem with the accuracy of your information.  In other words, the facts here are incorrect.

Agr   
Agreement.   There is some problem with agreement in number, having to do either with agreement between a noun and a verb (e.g.:  the dogs runs) or a pronoun and the noun to which it applies (e.g.:  France couldn't stand to see their flag trampled).

Ant
Antecedent.  There is some problem in the connection of the pronoun you use and the entity to which it refers, possibly a grammatical mistake in number (singular vs. plural) or clarity.

Cl.
Clarity.  Your meaning is unclear.  This could include ambiguity, a pronoun whose antecedent is unclear, or other forms of unclarity.  Always ask yourself:  "Would this  be crystal clear to somebody who didn't know as much as I know about it?"

CS
Concrete  Support.  In writing about history, as in other expository writing, you must  back up your generalizations with concrete examples which demonstrate the validity of your  point.

G
Good  Sense.  Your writing must make sense.  Sometimes in the heat of battle, the logic of  a sentence or assertion gets twisted or goes missing entirely.

P
Precision.  More precise words, ideas, and phrases are preferable.

Sig
Significance.  Why is this significant?  Why is it historically important?

Sim
Simplistic.  The formulation is too simplistic:  that is, it is oversimplified to the point  that it distorts the accuracy and validity of the passage.

Syn  
Syntax.  The sentence doesn't work structurally, either because of missing words, incorrect grammar, or other problems.

T
Timeframe.  Some indication of the timeframe, either general or specific, is needed.  This is HISTORY  after all, and one important given is our understanding of trends, ideas, events, and so forth, in their proper chronological sequence.

TAG
Attribute quotations.

V
Vague.  Passage or word is so vague that the reader cannot dig out the meaning easily.

Wh
Where.  Especially for test identifications, the instructions call for you to locate things in place as well as time.