Originally Posted by
billl
Blaze,
Dating oneself has two common meanings
1. (Pretty common, and the point of this thread) Imagine going to dinner or spending a romantic evening with ONESELF. You trying to get kisses from YOU, etc. Instead of dating a beautiful woman, you are dating YOURSELF. ('to date' means 'to have a romantic appointment, perhaps for dinner, etc.')
2. (Also common) This phrase can also mean "to provide evidence of one's age." So. if you say your first favorite band was the Beatles, that might place one's age in the 40's or 50's or whatever. And if one says that one doesn't know what an LP (long playing record) is, then maybe one is less than 20 years old... That is 'dating' oneself, ie. assigning some particular range of ages.
Maybe this will help explain the confusion between Blaze and MaryD