|"Is this all real? Or has this been happening inside my head?"
The topic of this article is of a real-life subject 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.
In 1926, the New York Ghost reported that the International Confederation of Wizards' Security Advisors had called for an immediate conference in the city of Antwerp, in response to the rise of Gellert Grindelwald and his escalating campaign of violence.
- Fantastic Beasts and Where to Find Them (film) (Mentioned in a newspaper)