<s>[INST] When was the LEGO group founded? and when did it start making the plastic brick based toys it is known for today? [/INST] The LEGO Group was founded in 1932 in Billund, Denmark. It started making plastic brick-based toys in 1949, which are now known as the iconic LEGO toys.</s>\ <s>[INST] To date how many bricks have been made and what would the estimate weight be if all of them where combined? [/INST] Give me a moment. I need to think about this step by step.

The number of legos ever made estimated at around 400 billion LEGO elements! Or 4e11.
Assume the average weight of a lego is around 3g.
That brings our estimated weight to 3g*4e11=1.2e12 grams. Or around 1.3m tons.

Realistically we will never be able to get that many LEGOs but if you start collecting now you can get to a ton pretty fast. An average 10 lbs of clean basic LEGOs costs around $100. That's $10,000 for a ton. It sounds like a lot but I think we could get there in a couple of years.</s>