Raisins coated in a shell of either milk chocolate or dark chocolate have their special day of honor each March 24 on National Chocolate Covered Raisin Day.
Chocolate covered raisins have been popular with moviegoers for many, many years and they continue to be.  They are also a conventional bulk vending item across the country.
In some countries, chocolate covered raisins are known as Raisinets. Raisinets were the earliest and one of the most popular brands of the product.  Currently made by Nestle, they are the third largest selling candy in United States history.  The Blumenthal Chocolate Company introduced the Raisinets to the United States in 1927, and then in 1984, the brand was acquired by Nestle.  There are also a large number of other brands of chocolate covered raisins on the market. 
Raisins are an excellent source of calcium, potassium, iron, fiber and vitamin B.  When you combine the raisins with dark chocolate, you have a great tasting, healthy snack.