Question: When was the first pair of glasses invented?
Disambiguated questions and answers: question: When was the first pair of eyeglasses invented?
When were the first pair of glasses for astigmatism invented?
When was the first pair of modern glasses, with temples passing over the ears, invented?
answer: 1290
1825
before 1727
Natural Questions answer: about 1290 (from the Wikipedia article "Glasses")