UNIX meets LOTR

Dick just found this: it's a UNIX command that brought up all of these dates from The Lord of the Rings. I don't really get it, but somehow all of these things are just living in my computer. It's a UNIX thing... If you have a Mac running OS X, (or any computer running UNIX, for that matter) open up a terminal, and try it out for yourself!
Note: there aren't any years, just months and days.

Who knew that Dick shares his birthday (September 14th) with both Bilbo and Frodo Baggins! I didn't know that Bilbo and Frodo shared the same birthday... let alone Dick! What does it all mean? Perhaps I'm dating a hobbit! ;)

[Trina-Chows-Computer:/usr/share/calendar] trinacho% cat calendar.history | grep LOTR

01/05 Fellowship enters Moria (LOTR)
01/09 Fellowship reaches Lorien (LOTR)
01/17 Passing of Gandalf (LOTR)
02/07 Fellowship leaves Lorien (LOTR)
02/17 Death of Boromir (LOTR)
02/20 Meriadoc & Pippin meet Treebeard (LOTR)
02/22 Passing of King Ellesar (LOTR)
02/24 Ents destroy Isengard (LOTR)
02/26 Aragorn takes the Paths of the Dead (LOTR)
03/05 Frodo & Samwise encounter Shelob (LOTR)
03/08 Deaths of Denethor & Theoden (LOTR)
03/18 Destruction of the Ring (LOTR)
03/29 Flowering of the Mallorn (LOTR)
04/04 Gandalf visits Bilbo (LOTR)
04/17 An unexpected party (LOTR)
04/23 Crowning of King Ellesar (LOTR)
05/19 Arwen leaves Lorian to wed King Ellesar (LOTR)
06/11 Sauron attacks Osgilliath (LOTR)
06/13 Bilbo returns to Bag End (LOTR)
06/23 Wedding of Ellesar & Arwen (LOTR)
07/04 Gandalf imprisoned by Saruman (LOTR)
07/24 The ring comes to Bilbo (LOTR)
07/26 Bilbo rescued from Wargs by Eagles (LOTR)
08/03 Funeral of King Theoden (LOTR)
08/29 Saruman enters the Shire (LOTR)
09/10 Gandalf escapes from Orthanc (LOTR)
09/14 Frodo & Bilbo's birthday (LOTR)
09/15 Black riders enter the Shire (LOTR)
09/18 Frodo and company rescued by Bombadil (LOTR)
09/28 Frodo wounded at Weathertop (LOTR)
10/16 Boromir reaches Rivendell (LOTR)
10/17 Council of Elrond (LOTR)
10/25 End of War of the Ring (LOTR)
11/16 Bilbo reaches the Lonely Mountain (LOTR)
12/05 Death of Smaug (LOTR)
12/16 Fellowship begins Quest (LOTR)