How are LEGO sets designed? History of the popular toys built brick by brick

The multibillion-dollar LEGO company has been producing popular products that both kids and adults enjoy since it was founded in 1932. 

LEGO sets range widely in complexity. There are quite straightforward sets that can quickly be built, while others are extremely detailed and take hours, sometimes even multiple days, to put together. 

Each LEGO set is labeled with how many pieces it contains, how big the final product stands, as well as the reccommended age associated with each set...