April Fools’ Day is celebrated in different countries around the world, and today people in Spanish-speaking countries are celebrating the Dia de los Santos Inocentes (the Day of Holy Innocents), a religious holiday similar to that of April Fools’ Day.

Just like in the United States, there are websites set up to help people come up with some good jokes to play on their friends and family. Everyone, whether you are young or old, may be that innocent soul that gets duped by friends.

The history behind Dia de los Santos Inocentes is religious and based on the Bible story of when King Herod heard the news that a new King of Israel was born (Jesus). King Herod immediately ordered the massacre of all the boys under the age of two in Bethlehem and its vicinity. The name given to this day, Dia de los Santos Inocentes, or “Day of the Holy Innocents,” fits perfectly well due to the many innocent souls that were lost that night.

Microbloggers are wishing each other a happy Day of the Holy Innocents (“felizdiadelosinocentes”) and tweeting about the jokes they have played or should be played on each other.

Yahoo News did an index review and found that tweeting about Dia de los Santos Inocentes is currently a popular trend. They also found that Apple is promoting the top apps, music, and movies on iTunes for 2011 using the hashtag “Rewind2011.” As usually, Apple tops the Twitter index.

Twitterers are posting about what they are watching on television. Films like Lean on Me (#leanonme), Roll Bounce, Sandlot 2, and Titanic fill out four of the top ten places on Twitter’s most talked about topics.

Yahoo said they also see trends internationally picking up in the U.S. “The name of the Kurdish politician ‘Leyla Zana’ has risen into seventh position on Titter’s trending topics. Turkish-speaking Tweeps are tweeting about Leyla Zana’s comment, “We demanded autonomy at first, but today Kurds think that autonomy is not enough.”

Other major trending topics that rounded out the top ten lists included the television show Family Guy and Happy Birthday Maddie, which has pop-star Demi Lovato fans tweeting a Happy Birthday message out to her sister, Maddie.