The oldest reference to a specific vintage can be found in a treaty by Pliny the Elder, a Roman historian. He referred to 121 BC as a vintage “of the highest excellence”. Kind of like the Antiquity equivalent of 1982.
You know what the crazy part is? Pliny wrote his History of the Roman Empire in 70 AD! So, almost 200 years after it passed, 121 BC was still considered an awesome year. It’s nice to know that historians had their priorities straight.