Building Sets are the plain DUPLO brick sets, buckets and boxes of bricks without a story. DUPLO started in 1969, and the name comes from the Latin word for double, because each brick is twice as long, wide and high as a LEGO brick. The studs are made to fit, so DUPLO and LEGO bricks lock together and a builder can move from one to the other. For years the plastic bucket was the usual way to sell them, from the 1980s through the early 2000s, often shaped or printed as an animal, a farm or a circus, and some came as anniversary editions. Later sets switched to cardboard brick boxes with ideas for what to build on the side.
2004 LEGO Sets
2004 was a pivotal recovery year following financial losses in 2003. LEGO updated its color palette, introducing light nougat for licensed minifigures and brighter grays and browns. The company partnered with Ferrari under LEGO Racers and launched Knights’ Kingdom II, a story-driven reimagining of Castle. QUATRO expanded the preschool range, while World City, Orient Expedition, Spider-Man, and Gravity Games concluded. These shifts, along with strategic licensing, began LEGO’s long-term turnaround.