I wax philosophical!
When you think about it doesn't really matter what the 'first' of anything one used was, other than to fix a point in time which really only shows your age. Although I like to think that I grew up with the true start of the microelectronic revolution; arguably the space race in the 60's.
What's more to the point is where do we, and later generations, go from here? It's way past the point where one could 'know' everything relevant about a subject (in electronics or anything else). 90's script kiddies, current hackers. are generally exploitations of weaknesses not true innovations.
Most of what is seen in electronics today by the majority are 'advances?' in social media, not necessarily bad as evinced by this forum; or, more importantly, more efficient ways to do things. But it's not fundamentally new science. We can enjoy electronics as our hobby, work etc.devise new products and will never come to fully understand all aspects of the subject.
I'm more interested in what our great grandchildren may have to say looking back at our time.