LEGO - An earlier version of our beloved brick! Not fully evolved in to the brick we know and love today, this brick did not have the system in which the pieces
Design classic: the Lego brick
evolution of the early 2X4 LEGO brick
The Chaotic Evolution of LEGO Bricks... - YouTube
Old Bricks: 5 Classic LEGO® Colours | New Elementary: LEGO® parts, sets and techniques
The Disastrous Backstory Behind the Invention of LEGO Bricks | HISTORY