The LEGO DUPLO theme was introduced as far back as 1969 and is designed for children ages 1 to 5. It features DUPLO figures which are much larger than minifigures and DUPLO blocks which are about twice the length, width, and height of a standard System brick. Like LEGO System, DUPLO also has subthemes that are often junior versions of System themes, like Pirates and Castle and licensed themes like Disney and Super Heros.
1982 LEGO Sets
1982 focused on incremental depth: Expert Builder (the forerunner to Technic) pushed functional mechanisms with gears, axles, and linkages, while Space and Town delivered steady waves of bases, vehicles, and civic builds. The 12V Train ecosystem continued to mature with expanded track components and control options.