MATRIMONIUM LEGEM
In the wake of the Itch, a handful of Potioneers discovered something previously unknown, or undocumented, about blood.
They called it Magical Blood Percentage and it showed, per litre of blood, how much magic there was in an individual - on basic terms, a scale of Pureblooded-ness.
Such a measurement also made it easy for them to determine and predict the likelihood of a Squib birth for a reproducing couple. It also determined the likelihood of magical, blood-born diseases being contracted by the offspring of a magical couple.
What they found was that the likelihood of Squib births in Purebloods was sky-high and, in fact, Ministry birth records showed at since the 18th Century, Squib births had been on the up.
With a depleted magical populous and very few children being born to magical parents, the Ministry knew they had to act. They passed Article 203 - a marriage law.
It states all people aged seventeen are required to register with the Ministry. For women, the maximum age is fifty and for men, seventy. Those between those ages are expected to marry within thirty days of receiving their allotted spouse and are
expected to adhere to marital harmony this, that and the other.
How long will it be until you get your letter? Until your marriage?
All little girls dream of their wedding day and all little boys have little hero complexes, wanting to be the princes and save their princesses. Who would've thought it would've come sooner than either parties would've expected?