New answers tagged history
If you look at the quantity of parts in all sets, the most common is the 1x2 brick ignoring color. The most common part and color combo is the Techhnic pin with friction in black. Rebrickable keeps these stats: http://rebrickable.com/stats/parts
This link gives a list of every official theme and type up to now. These themes include DUPLO, Bionicle, Znap, and Baby, among the many other wonderful adventures LEGO has offered over the years! So I counted them one by one. It was tedious. Total listed (spoiler): But it didn't list the many series under Bionicle, so let's bump that up to: I really ...
Top 50 recent answers are included