Today is the 90th anniversary of the creation of a popular toy that you and probably everyone you know has played with at one time or another. It’s the birthday of LEGO. If you’ve been living under a rock, LEGOs are those plastic building-block toys that rose to massive popularity in the mid-20th century. You know the ones? Your kids build a castle or a barn and leave several lying hidden in the carpet just waiting for you to step on one and ….. YEE-OUCH! LEGO blocks originat