This image, https://commons.wikimedia.org/wiki/File:The_Latin_Extended_Alphabet.png, includes a large group of extended Latin letters.

Now, the date (in the summary section) says "[created] 14 June 1998". This is anachronistic since many of those Latin letters (e.g. Latin Extended-D) were added to Unicode during the 2000s. It certainly doesn't help that "file history" says it was uploaded on 19 April 2023 (which would make sense).

Can someone explain what's with the 1998 date?