Item Year of Release

Sets, Books, Gear and Catalogs in the reference catalog contain information for which year they were released.

Original Boxes and Instructions inherit the year of release from Sets.

Minifigs inherit a timeline depending on which Sets and Gear they came in. Parts inherit a timeline depending on which Sets, Gear and Minifigs they came in. The timeline for Parts and Minifigs is updated once a day. Since some sets may not yet be inventoried, the dates for Parts and Minifigs may not include the initial year or all years of appearance.