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.
1978 LEGO Sets
In 1978, LEGO introduced several groundbreaking themes that would define the company for decades. One of the most significant developments was the expansion of the LEGO Town theme, which built upon previous city-focused sets. This year, LEGO introduced new models of public transportation, including buses and taxis, further enhancing the realism and playability of urban environments.