
LEGO Mursten, produced between 1949 and 1953, were the first plastic building blocks by the LEGO Group. These early sets, known as LEGO Basic Sets, included simple, hollow rectangular bricks without the modern stud-and-tube locking mechanism. Sold primarily in Denmark and a few European countries, these sets laid the groundwork for the modern LEGO system. In 1953, the Mursten evolved into "Automatic Binding Bricks," featuring an improved design that eventually led to the patented stud-and-tube system in 1958, which greatly enhanced the stability and versatility of LEGO constructions.
1954 LEGO Sets
1954 was pivotal in shaping LEGO’s identity. The LEGO name was officially registered as a trademark in Denmark, and Godtfred Kirk Christiansen was appointed Junior Managing Director. New elements such as doors and a variety of window types expanded architectural possibilities, while exports to Sweden and Norway began. These developments, along with early concepts for a unified play system, laid the groundwork for what became the LEGO System of Play.