The Fairground subtheme is part of the LEGO Creator Advanced Models theme and represents a number of sets that incorporate elemets of fairs and amusements rides including roller costers, carousels, ferris wheels and more. The first set, Grand Carousel, was released in 2009 and additional sets followed in 2014 with one or two releases yearly.
2009 LEGO Sets
In 2009, LEGO Star Wars celebrated its 10th Anniversary with the release of its 10th Anniversary sets. But even more important, LEGO celebrated its 50th anniversary of the LEGO Brick. A number of new themes were first introduced including BIONICLE Glatorian, Space Police III, Power Miners, Agents 2.0 and LEGO Pirates was re-introduced. Some themes that were retired in 2009 by LEGO included Mars Mission, the original and highly collectable Batman sets. Exo-Force and Belville where also discontinued in 2009.