I had an interview a few years back where they wanted to know not just what is was the state of the art (latest JQuery features etc.) but what was added and whe

I had an interview a few years back where they wanted to know not just what is was the state of the art (latest JQuery features etc.) but what was added and when historically! They wanted someone who was totally on the ball with the stacks going back in time (and with presumably a better memory for that stuff than me!)