​Calendar: Week of December 22

Here's a look at the week ahead on our "Sunday Morning" Calendar:


On Monday, the Columbus Zoo and Aquarium in Ohio celebrates the 58th birthday of Colo the Gorilla. She's the oldest gorilla in any zoo, and the first to be born under human care.


Tuesday's the day many Seinfeld fans observe "Festivus," the imaginary holiday of strange rituals that the TV sitcom first introduced back in 1997.


Wednesday sees the premiere of a Spanish language version of "Rent" in Havana. It's the first staging of a Broadway musical in Cuba in more than 50 years.


Thursday, of course, is Christmas, observed by Christians around the world.


Friday is Boxing Day, apparently named after the British practice of giving servants a box of gifts on the day after Christmas.


And Saturday has been decreed National Fruitcake Day, a day to celebrate what some would call the most misunderstood of Yuletide treats.