|"Is this all real? Or has this been happening inside my head?"
The subject of this article is a real-life person, company, product, or creative work that has been mentioned "in-universe" in a canon source. The Harry Potter Wiki is written from the perspective that all information presented in canon is true (e.g., Hogwarts really exists), and, as such, details contained in this article may differ from real world facts.
Publishes newsworthy events
The Guardian was a Muggle newspaper. A few days after the attack on the Millennium Bridge in the Summer of 1996, patrons were seen reading their tabloid of choice at Treats; The Guardian was among them. That day, a large photo of the ruins of the bridge was featured on the front page.