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 marked the arrival of the LEGO Expert Builder series, later known as LEGO Technic. This line offered a more advanced building experience, incorporating specialized parts such as gears, axles, and pins, allowing for functional mechanical models. Additionally, the classic LEGO Space and Town themes saw the addition of new sets.