ADHD ADHD And Me: Look, Squirrel! A Personal Perspective: Attention Deficit Disorder identified later in life. Posted September 13, 2021 | Reviewed by Kaja Perina ...

Venn had initially used diagrams developed by the Swiss mathematician Leonard Euler to show some relationships between sets, which he then developed into his famous Venn diagrams.

Google created an interactive illustration in honor of the 180th birthday of logician and philosopher John Venn — best known, of course, for inventing the circles known as the Venn diagram.

In the 90s, ADHD was the big buzzword in psychology -- especially for boys who were hyperactive in school, couldn't sit still, couldn't concentrate on their homework, and whose working and/or ...