Educational toy made in plastic versions. In the mid-1950s, more explicitly engineering-themed construction toys appeared, including plastic girders, columns, and panels that could be assembled into a model curtain wall skyscraper. Later, this Girder and Panel structural system was extended to a Hydro-Dynamic setup by adding pipes, valves, tanks, nozzles, and pumps to allow construction of model plumbing, HVAC, and chemical engineering systems like a simulated distillation column. Other extensions of the system supported suburban-style housing developments (Build-A-Home), or monorail transportation systems (Skyrail). The building toy Lego was originally developed by Ole Kirk Christiansen in Billund, Denmark, in the 1930s. The name
Lego minifigure Lego minifigure A Lego minifigure, commonly referred to as a "minifig", or simply just "fig", is a small plastic articulated figurine, many of which are yellow and other skin tones, available as part of the construction toy Lego, produced by Danish toy manufacturer the Lego Group. They were first produced in 1978, and have become hugely successful, with over 3.7 billion produced, and the figure appearing in a variety of media, including movies, books and video games. The figures are usually found within Lego sets, although they are also sold separately as keychains and magnets. While some are named as