Hussar said:
How about we reverse the situation here for a second?
If a player did what Noah proposed, would that be fine? If, as a player, I demand to be allowed a three minute soliloquy, three times per session where I can detail the genealogy of my PC, would that be acceptable? If anyone interrupts me or shows boredom, should I be allowed to kick that person out of the group?
If you stop me from doing this, aren't you stepping all over my fun? Shouldn't you have to show polite interest in my "meticulous" work?
Why or why not?
/edit - btw, just because I can, I totally agree with RC as well. Not THAT is a sign of the coming end of days.
If you're doing the SAME soliloquy about your character's genealogy, you'd probably be bound to get an
in-play comment from someone like me to stuff your pedigree back into its book because we all heard it before...with the politeness of the comment depending on the character I play at that moment.

On the other hand, it might turn into a character-determining trait for your PC...you know, like "that half-elven bard who alway claimed he was some elven noble's son whenever he got into trouble with authorities" or something like that.
Out-play, listening to it once is okay, to get to know the character's history, or at least as much of it you are willing to share...and again when some detail of it might indeed be of interest to the situation at hand, and we're in a discussion about the current situation. Otherwise, you'll probably annoy your fellow players with the third or so recap.
The DM's job "unfortunately" already contains the listening to the character stories and histories of his players...although, from a simple human point of view, annoyance might set in after the 3rd or 4th time you repeat the same stuff as well.
As an aside...out-play chatter on the table should be discouraged anyway. That includes the retelling of some character detail ad nauseam, as well as a description of some item history or similar stuff outside of an in-play prompting, like a knowledge check or some PC/NPC asking/researching for it. As such, a DM is always well served if he manages to integrate his informations into the game as a framework...something many posters in here have already suggested.

Like with a special sword...who keeps you (as DM) from placing a ring of runes around the sword hilt, declaring "This is Flamesnuffer, made from the Frost Jarl's Winter Axe. Whoever holds it shall be king of all the tribes of the Ice Wastes" That should be enough to prompt any player with some sense of curiosity to at least a
Knowledge check.