Erin BeeAug 23, 2018
This explains everything.
(Source:Tenso Graphics)
Show threadacb
@erinbee It was a Threadless T-shirt maybe 10 years ago
Aug 23, 2018 at 8:29pm◆ Tootdon ◆
Show threadErin BeeAug 23, 2018
@acb Looks like it still is! https://www.threadless.com/designs/math
Show threadacbAug 23, 2018
@erinbee It’s probably their biggest seller, alongside The Communist Party