In addition to the standard historical and religious events, it seems there’s a designated day for just about every global cause, scientific wonder, special interest, food item and quirky pop culture trend.  Special designated days cover the spectrum from serious observations such as the upcoming International Day of Peace to fun and silly events such as International Talk Like a Pirate Day.  Falling somewhere in the middle of the serious-to-silly range are hobbies and special interests such as National Collect Rocks Day.