That's a nice article, and thanks for linking to it, definite upvote, though it is sloppy with words, as "creation" above refers to issuing currency, not creating it.

Here's where money is physically created, somewhat of a curious point since so much of transacted 'money' is digital, and perhaps why the article above misleadingly says "creates".

https://en.wikipedia.org/wiki/United_States_Mint