Quick question: I have heard these described as "Mindmaps", "Concept maps", "Spider diagrams". And read about 4 articles now by supposed inventors of this as

Quick question: I have heard these described as "Mindmaps", "Concept maps", "Spider diagrams". And read about 4 articles now by supposed inventors of this as a "new technique". I can find such diagrams dating back to the 70s at a cursory glance at some old journals I have (engineering, informatics). Is it not common to encounter this diagram approach in learning or educational tasks in some parts of the US? I'm not too old, and I learned to use this technique to map out concepts before 2009. I just find it strange. Can anybody provide further context on why this is put forward as an innovation so often?