No, we're not... The default assumption for anything cryptography is American, yes, but Satoshi's original claims of being Japanese (which no one believes given his great English and complete absence of any displayed Japanese phrases, allusions, references, knowledge, or anything) aside, the timing of his posts and some phrasing suggests he may've been in the United Kingdom.
The Times is the world's largest financial newspaper. I regularly deliver the FT to individuals here in Denmark when delivering mail on Saturdays. It's an international newspaper.