Disclaimer: If I was J. K. Rowling, I might be; and if I were her, I would be; but as I'm not, I ain't.

In the interest of reducing the incidence of congenital retardation among Britain's wizarding population, every adult, unmarried British subject of pure (80% or more) wizarding blood is required to marry a witch or wizard of 50% or more Muggle ancestry within the next thirty-one days. Failure to comply shall be considered a crime against the British wizarding community, and the offender shall be penalised accordingly... This law shall be enforceable throughout Great Britain and her overseas dominions.

–Ministry of Magic decree, 2 October 1999

Record Numbers of British Immigrants Crowd New York Harbor

–New York Times headline, 4 October 1999