The Bureau of Historical Oversight is a department of the American Wizarding Confederation.

The Bureau may be involved in preserving the timeline from disruption by would-be time-travelers.

In November of 2009, Valeria White told Alexandra Quick that she wanted to keep the nature and methods of her Historical research – which involved meeting with the ghost of Absalom Thorn – a secret from the BHO.


Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.