I only started using Strava this past Christmas. I think I can manage to remember a time before that.

I only started using a mobile phone a year ago, at Easter. I think I can even manage to remember a time before that.

But I've been using a bicycle computer of some sort since the 1980s.

In fact, I still log my distances in both bikejournal and my own Excel file.
https://bikejournal.com/

I also used BigDogs, but that one seems to have disappeared.