Definitions
Prior History: What was going on with your case before it was decided.
Subsequent History: What has happened to your case since it was decided.
Citing Decisions: Cases that have cited your case.
Table of Authorities: List of cases cited by your case.
Terminology
The source you are shepardizing/keyciting may also be called:
the original case
the cited case
The results that you get when you run a cited source through a citator may also be called:
citing cases
citing references
citing documents
The Table of Authorities lists each document cited by your case. When a judge writes an opinion, they will cite to other cases. The table of authorities is a list of those case. The Table of Authorities can help you find hidden weaknesses in the cited case by showing whether the citing cases on which the cited case relies have significant negative history