The Castle theme is one of LEGO’s primary themes first introduced in 1978 and based around medieval life with castles and knights. It is currently the third longest-lived theme in LEGO history. Over the years it saw numerous changes thus introducing various fantasy elements.
2013 LEGO Sets
2013 included a number of notable theme releases including the Legends of Chima, The Lone Ranger, Galaxy Squad, Teenage Mutant Ninja Turtles, Jake and the Never Land Pirates and Mickey Mouse & Friends. The flagship release was Legends of Chima with the coincided premier of The Legends of Chima TV Show on Cartoon Network. However, LEGO unfortunately did retire a number of well-loved themes such as Monster Fighters, SpongeBob SquarePants, Cars and Dino. One interesting note is that in 2013, LEGO started changing from 4-digit set numbers to 5-digit set numbers. 2013 was also the year that LEGO release the exclusive Mr. Gold in its collectable minifigures blind bags. This event single handled created one of the greatest investment opportunities for collections LEGO has seen.