DUPLO is a LEGO Theme and a subline intended for children aged 1-5 years old, and was introduced as a brand in the year of 1975, though the name and the blocks had already been around since 1969. The three forms of minifigures, or DUPLO figures of the DUPLO are more sizable and stable,  and the blocks are about twice the length, width, and height of their equivalent System brick and half the length of a QUATRO brick. It can be noted that DUPLO is compatible with normal System bricks,but only with 2x2's and further because its too big for 1x1,1x2x3 bricks.
Relations With DinosaursEdit
Dino was a recurring DUPLO theme first appearing from 1997, to 1999, and then again in 2007 through 2008. There were 20 sets released from this theme from both decades. In 2012, a theme based on dinosaurs was released for System.
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