After checking many Web sites, I found much inconsistency in whether "historic records" or "historical records" is used.
- Which of these terms simply means "a document, created at any time, which describes the past"?
- Which of these terms means "a document of much significance, itself considered an important part of history"?
- Which of the terms means "a document of much significance in itself, which also contains descriptions of prior events"?
Why is it "geometric" but "theoretical"? describes the meaning of the "-ical" ending found in "historical", but I could not see how to determine its usage in this confusing context.