Talk:Mugen/@comment-122.26.55.143-20160907085131/@comment-2600:8805:D500:3D10:A03E:9FEE:1C6A:CFAE-20180525154741

You're thinking of the invention of BIFOCALS by Benjamin Franklin, which yes was in the 18th century. But as another commenter mentioned above, glasses were invented many centuries before that.