LEGO spans almost 100 years of the existence of a toy that grew from small wooden playthings in the early 20th century into the center of a vast market of plastic building bricks that dominated the world markets for decades. It is one of the oldest plastic toys in the world. Its manufacturing was started in Denmark, but was eventually replaced by factories throughout the world. Today it is one of the most successful toys and has remained an iconic brand with a loyal and continuing following. The traditional date for the first Lego blocks is 1947, and the toys have continued to be produced with little interruption since around that time. Continue reading for more fun and interesting facts.