About LEGO Classic Building
The LEGO Classic Building theme from the 1960s consisted of sets that focused on general construction and architectural design using standard LEGO bricks. Unlike specialized themes, the Classic Building sets from this era emphasized foundational building techniques and allowed for the creation of various structures and designs. It represented one of LEGO's early efforts to promote versatile brick-based construction.
1965 LEGO Sets
By 1965, LEGO employed more than 600 people as production scaled rapidly. Packaging was redesigned to feature only buildable models, improving clarity and consistency. In North America, Samsonite introduced the first LEGO gears—designed in Billund by Knud Møller Kristiansen—allowing mechanical motion and simple transmissions. Though initially exclusive to the U.S. and Canada, these parts marked LEGO’s first step toward functional construction.