"The first lossless audio format to gain widespread adoption (FLAC) was released 6 years after MP3."
AIFF and WAV say what?
AIFF and WAV say what?
On the other hand, AIFF does have a compressed variant ("AIFF-C") spec'd in 1991 [1], which I suspect the author wasn't aware of.
[1] https://www.mmsp.ece.mcgill.ca/Documents/AudioFormats/AIFF/A...