LEGO Town Plan was a theme introduced in 1958 and lasted until 1966 and was under the System i Leg (System of Play) theme. The theme was unveiled at the Nuremberg Toy Fair in February 1955. LEGO Town Plan originally consisted of the existing 700 series LEGO Mursten sets, several new HO 1:87 scale accessories, and a vinyl play mat. However, over the next several years the system was expanded with both new building sets.
1957 LEGO Sets
In 1957, LEGO celebrated its Silver Jubilee Year of 25 years since its founding. This was yet another important year in the history of LEGO in that the founder, Ole Kirk Christiansen, health began a steady decline and by 1957 it had deteriorated to the point where he could no longer participate in the business. The company was restructured and his son Godtfred Kirk Christiansen was appointed Managing Director. In addition, the 700-series System i Leg wood box sets were introduced and Language translations first appeared on the sides of boxes to cope with the variety of markets LEGO was sold in. Also, in 1957, LEGO Schweiz was established and was LEGO Group's first official company outside of Denmark located in Switzerland.