🧩

Etymology
Created in 1963 by the of England; popularized largely by  beginning 2005.

Symbol

 * 1)  autism; autistic; autism awareness
 * 2) neurodiverse
 * 3) mentally ill

Usage notes
Some autistics find this symbol off-putting, or even offensive, saying the symbol originates from an outside perspective. Compare the use of the infinity symbols (∞ or ♾) to represent neurodiversity from an inside perspective.