A variety of production features have helped the lego company throughout its history. Lego has created some of the most loved toys around the world thanks to these features. These features include the creation of a unique interlocking system and the use of plastic in place of other materials. These unique features have allowed the company become the most sought-after toy manufacturer in the world.

The 1960s saw the company expand at a rapid pace. Dagny, Godtfred Kirk Christiansens cousin joined the company in 1960 as a model maker. Dagny was a master at creating large-scale models and worlds, which were displayed in the showroom. This was a great way to advertise the possibilities of LEGO bricks, and also to create interest among children.

In 1971, the LEGO system was expanded into new areas thanks to the additions of dollhouses and furniture. The LEGO system was further expanded in 1972 with the introduction of ship and boat sets that had hull pieces that floated. The 1960s also saw the company start its international expansion, with sales in North America through a licensing agreement with Samsonite.

In the 1980s the company continued to grow and diversify, while also modernizing. The company also incorporated a research and design department that was tasked with keeping the LEGO System in the forefront of innovation. It also saw the introduction of themed sets that allowed users to create specific models without having to figure out what they should do on their own. This was the first step towards more complex building and also allowed children to gain an even more hands-on experience with Legos.

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