Tip a bin of bricks onto a towel and ask who can build something that spins. I love a challenge where a lopsided little invention can beat a magnificent tower simply by doing its job. January 28 marks the anniversary of the LEGO brick patent application.
What is International LEGO Day?
International LEGO Day is January 28, a celebration of building, rebuilding, and seeing what a handful of bricks can become. A shared bin is enough for a family challenge.
The patent behind the date
On January 28, 1958, LEGO filed the patent application for its stud-and-tube system. The design helps bricks grip together securely, an important step in the building system’s history. That connection between a simple structure and many possible creations is what makes an open-ended challenge so fitting. LEGO’s history of the stud-and-tube principle.
A simple way to enjoy the day
Ask everyone to build something that moves, holds an object, or crosses a gap. Test the designs and then swap one improvement idea. The most interesting model may be the one that needed a second attempt.
Holiday dates for planning
| Observance | 2026 | 2027 | 2028 | 2029 | 2030 |
|---|---|---|---|---|---|
| International LEGO Day | Wednesday, January 28, 2026 | Thursday, January 28, 2027 | Friday, January 28, 2028 | Sunday, January 28, 2029 | Monday, January 28, 2030 |
International LEGO Day date reference
One bin, one brief
Put a handful of mixed bricks within reach of each builder. Skip specialty pieces and let people trade. Draw one challenge for the whole table, set a five-minute timer, and let partners build together if they like. Younger builders can keep going after the timer rings.
Give it a proper test
For the bridge card, choose the toy car first so everyone builds to the same width. For the spinner, let go with both hands and see what happens. Give each builder a chance to explain the clever bit, especially if the clever bit fell off during testing.
Play the rebuild round
Keep the first model intact long enough to sketch it. Swap one handful of pieces with a neighbor, then change one feature and test again. End with a little museum tour. Ask each builder what part they would rescue if they had to take the whole thing apart tonight.
Get the free printable set
One-Bin Brick Challenge Cards includes three US Letter pages. Cut out the first two pages. Save the sketch page for the rebuild round.