In the depths of Unix lives a pretty nice easter egg that tells you all the major events that happen in the Lord of the Rings saga.
To take a look at this calendar and refresh your memories of those events, you just have to type the following command in a terminal window:
Once you validate the command, your computer will display a quite detailed list resuming the major events that took place in J. R. R. Tolkien's famous saga. In case you're not next to a Unix system right now, here's what the command outputs:
/* * Lord Of The Rings * * $FreeBSD: src/usr.bin/calendar/calendars/calendar.lotr,v 1.2 2003/10/09 00:31:48 grog Exp $ */ #ifndef _calendar_lotr_ #define _calendar_lotr_ 01/05 Fellowship enters Moria 01/09 Fellowship reaches Lorien 01/17 Passing of Gandalf 02/07 Fellowship leaves Lorien 02/17 Death of Boromir 02/20 Meriadoc & Pippin meet Treebeard 02/22 Passing of King Ellesar 02/24 Ents destroy Isengard 02/26 Aragorn takes the Paths of the Dead 03/05 Frodo & Samwise encounter Shelob 03/08 Deaths of Denethor & Theoden 03/18 Destruction of the Ring 03/29 Flowering of the Mallorn 04/04 Gandalf visits Bilbo 04/17 An unexpected party 04/23 Crowning of King Ellesar 05/19 Arwen leaves Lorian to wed King Ellesar 06/11 Sauron attacks Osgiliath 06/13 Bilbo returns to Bag End 06/23 Wedding of Ellesar & Arwen 07/04 Gandalf imprisoned by Saruman 07/24 The ring comes to Bilbo 07/26 Bilbo rescued from Wargs by Eagles 08/03 Funeral of King Theoden 08/29 Saruman enters the Shire 09/10 Gandalf escapes from Orthanc 09/14 Frodo & Bilbo's birthday 09/15 Black riders enter the Shire 09/18 Frodo and company rescued by Bombadil 09/28 Frodo wounded at Weathertop 10/05 Frodo crosses bridge of Mitheithel 10/16 Boromir reaches Rivendell 10/17 Council of Elrond 10/25 End of War of the Ring 11/16 Bilbo reaches the Lonely Mountain 12/05 Death of Smaug 12/16 Fellowship begins Quest #endif /* !_calendar_lotr_ */
According to Steve Sande, a writer at TUAW, the birthdays of Frodo and Bilbo are incorrect. In the original books, the two hobbits are both born on September 22nd (and not September 14th as indicated in the calendar).
Update: I've been told this easter egg is also present on Ubuntu 12.10 and more generally on every Unix operating system.