The Zentangle® art form and method was created by Rick Roberts and Maria Thomas and is copyrighted. Zentangle® is a registered trademark of Zentangle, Inc. Learn more at zentangle.com.
On the other hand I (+ others) have been 'doodling', drawing, making marks for years!
Here are some images of things I own ................
jewellery + a string of rattle-snake tails +
'House of Good Fortune' screen print by Dianne Longley (1988)
Shirt by Roberta Leary (1987)
So .... I will keep on keeping on no matter what we call it!