I'd combine all your ideas - that the day he killed the Potters is the day he ceased to be Tom Riddle and truly became the LP, which he was able to later carry off as his "monarchical" birthday.
It looks from Arthur's recent post that the LP's reign of terror over Muggles didn't start until 1985 (unless, of course, he asserted himself earlier and didn't bother to kill the political leaders until later - but this seems unlikely). So if my dates are right, that implies 3-4 years between Halloween 1981 when the Potters died and the point of 1985 in which the Muggle political leaders died. Plenty of time to firmly establish his new birthday.
no subject
Date: 2008-11-06 02:51 am (UTC)It looks from Arthur's recent post that the LP's reign
of terrorover Muggles didn't start until 1985 (unless, of course, he asserted himself earlier and didn't bother to kill the political leaders until later - but this seems unlikely). So if my dates are right, that implies 3-4 years between Halloween 1981 when the Potters died and the point of 1985 in which the Muggle political leaders died. Plenty of time to firmly establish hisnewbirthday.Fascinating!