I started wondering when the first time an infinite combo was possible in Magic: The Gathering. I went through Alpha and, as far as I could tell, there wasn't an infinite combo available among the cards there, although there were a couple pieces to well known infinite combos.
Looking into their famous combos, the first one that I could come up with was the Basalt Monolith / Power Artifact combo that existed as far back as Antiquities, the fifth set to be released by Wizards.
Are there any infinite combos that existed before this two card combo? Specifically, I'm looking for infinite combos that are legal to execute by tournament standards. So for example, using Basalt Monolith to tap and untap itself repeatedly wouldn't count as it doesn't advance the board state.