The event was triggered by reaching an emission threshold, not by a date.
The proof in Numbers:
The Halving took place when the circulating supply exceeded 10 500 000 tokens.
▪️Circulating Offer Reached: 10 500 203 tokens.
▪️Consequence: The reward per block has decreased from 1 TAO to 0.5 TAO.
▪️Date: Around December 14 (UTC).
The supply is Reduced: The daily emission of new $TAO is now halved (from 7200 to 3600 $TAO per day).
