I've been trying to work it out - I'd assume that if it's number and then alphabetically, that would mean AD would have to go in front of BC, and you couldn't get a sonmgh earlier than 1AD. So if it goes by dates, first in the line could be a Christmas Carol of sorts:

1AD and 1BC

1AD and 1BC
came and went mysteriously,
angels singing joyfully
shepherds, stars and Wise Men Three,
ox and ass and you and me,
something new has come to be

>/I>

And you could sing that to the tune of "Twinkle Twinkle Little Star", as a round.

On the other hand, I imagine that symbols would come even before numbers, though I dont know what order they'd come in. You could have a song about money with the title: £ & $ = ?% But I won't try writing it. I suppose it could exist of unspeakable profanities: ******* & ****, #~!#. £$£$!!.****** & ****!

Incidentally, I can't see any reason to prefer Elizabeth Tudor to Mary Tudor. Both of them went in for killing religious opponents on a fairly big scale, though nothing much compared to the kind of thing we've seen in the 20th century. And so far as Ireland was concerned, both were bad news, though Elizabeth was worse.