Easter Egg-urile sunt mici surprize ascunse de catre dezvoltatori in interiorul propriilor programe, Apple are obiceiul de a include asemenea surprize in software-ul sau si unul nou a fost descoperit recent in OS X. Fanii seriei Lord of The Rings au ocazia de a descoperi
in OS X Mountain Lion un timeline al desfasurarii intregii povesti. Pentru a vedea ceea ce a inclus Apple trebuie sa deschideti aplicatia Terminal si sa rulati comanda cat /usr/share/calendar/calendar.lotr, iar mai apoi veti vedea afisat intreg textul de mai jos.#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_ */