HODIE (Roman Calendar): ante diem quintum Idus Decembres.
MYTHS and LEGENDS: The art image for today's legend shows the Danaids; you can also see the legends for the current week listed together here.
TODAY'S MOTTOES and PROVERBS:
TINY PROVERBS: Today's tiny proverb is: Liberos erudi (English: Teach your children).
3-WORD MOTTOES: Today's 3-word verb-less motto is Silentio et spe (English: In silence and hope).
ANIMAL PROVERBS: Today's animal proverb is Vetulus simius non capitur laqueo (English: The old monkey is not caught in the snare).
POLYDORUS: Today's proverb from Polydorus is: Leges bonae ex malis moribus procreantur (English: Good laws are born of bad habits).
PROPER NAME PROVERBS: Today's proper name proverb from Erasmus is Harmodii cantilena (English: The song of Harmodius; from Adagia 2.10.93 - this refers to something utterly sad, such as Aristogeiton sang upon the death of his lover Harmodius).
GREEK PROVERBS: Today's proverb is Ἀγεωμέτρητος μηδεὶς εἰσίτω (English: Let no one untrained in geometry enter - the motto supposedly written above the entrance to Plato's Academy).
BREVISSIMA: The distich poster for today is Virtuti Mors Nocere Non Potest. Click here for a full-sized view.
And here are today's proverbial LOLcats:
FABULAE FACILES: The fable from the Fabulae Faciles widget is Vulpes et Uva, the famous story of the "sour grapes" (this fable has a vocabulary list).
MILLE FABULAE: The fable from the Mille Fabulae et Una widget is Lupus et Puer Mendax, another famous story - the boy who cried wolf.
GAUDIUM MUNDO: The Latin holiday songs for today are: Musicus Parvulus, a Latin version of "Little Drummer Boy, and another carol for children, Regis Olim Urbe David. There are also the traditional hymns In natali Domini and Conditor Alme Siderum.