Being very “long in the tooth”, I can point to a scanned slide of a butterfly in Taiwan which has an estimated date of May 1969:
https://www.inaturalist.org/observations/69211543
I had probably just bought my first SLR, a Minolta, and a 135mm telephoto lens. I took the camera with me on a day trip to the north coast of the island.
Unfortunately, I have a large number (100+) images of Taiwanese plants and animals from my stay there (USAF, 1969-70) but they have no dates or specific locations on them, so I have not bothered to scan and upload them.
Scanning my old slides–just as my late pal Greg Lasley did–is a real trip down memory lane. I’ve now uploaded over 300 observations in the 1969-1975 era, before school and life got in the way.
https://www.inaturalist.org/observations?d1=1969-01-01&d2=1975-12-31&order=asc&order_by=observed_on&place_id=any&user_id=gcwarbler&verifiable=any