Growing up in the US in the '70s and '80s, I'd never seen it this way, either, and a little googling shows that it's a very obscure variant, with fewer than 60K

Growing up in the US in the '70s and '80s, I'd never seen it this way, either, and a little googling shows that it's a very obscure variant, with fewer than 60K uses, compared to renaissance with over 13M uses. I think someone saw it mentioned as an American variant and became confused into thinking that it was a common American variant.