Thought I'd share this interesting find from yesterday--
I've never been a postage historian, so I'm very new to the world of collecting covers, but I'm doing so right now with the 3c 1861 stamp to try to find some of the color variations by date. To do that, you need to be able to know not only the month, but also the year.
As many of you will already know, the month and date is fairly easy on many covers, but the year can be a problem-- sometimes there is a year on the Circular Date Stamp, sometimes it is found in the correspondence that may be in the cover, sometimes it is docketed on the outside of the envelope, especially if it contained legal documents.
The one below, came in a lot of several others with dates, and was pretty useless to me:

That is, until I was holding it up to a light and found something inside I hadn't seen before-- and probably hadn't looked, because I was too busy looking for year dates. A newspaper article describing a "Privateer" and Confederate ship named the "Florida" that the writer of the article had come across in Havana, Cuba.

I've edited the article, and uploaded as a photobucket image so it could be more readable, and the article refers to a Capt. Maffit, the privateer, who was the captain of the Florida.
Last night for kicks, I googled Captain Maffit and "Florida" and found a lot of information about John Newland Maffit. Wiki (I know it isn't always dependable information) shows "On August 17, 1862, he became the first commanding officer of the cruiser CSS Florida, taking her through a difficult outfitting period during which most of the ship's company was stricken with yellow fever. While in port in Cuba, Commander Maffitt himself contracted the disease."
The article above states how is in Havana to outfit the ship, so the year of the cover must be 1862 (or at least it is reasonable to suggest that it is, IMO).
Another interesting article I found was at this location:
http://www.cfhi.net/CaptainMaffittsDaughter.phpAnd since it shows that it was written by a descendant, I'll email him to at least point him to this post, and if he wants the article, I'll be happy to share with him.
I thought I'd share, because I thought it was pretty cool that I was able to figure this out, and it was really kind of a first for me in researching a cover.
Enjoy, Ray