The Lake Taupo Supervolcano erupted in ce 180. The effects of this eruption were recorded by the Chinese and the Romans, and teh Hatepe Eruption was a small eruption by Taupo standards, something like 1/10th the size of the pervious three, still a VEI 7, still bigger than Tambora. If that's not good enough for you, then here's something else to consider, the Taupo Supervolcano produced a VEI 8 (The Oruanui eruption) 26 thousand years ago. Why could this be important to consider? Because it offers a better explanation. Eruptions that reach VEI8 have not occured in recorded history, because eruptions that reach VEI8 are infrequent, and have occured recently.