1994 December 13, Mark Maestas, “Dream Tournament 3: Round 1 Results, Part 2”, in rec.games.video.arcade[1] (Usenet):
Scorpion's body dropped to the ground as Felicia turned back into a cat. With a barely audible "nyao," she then began to lick and clean herself off.
1997 August 16, Terra, “[XOver] [FanFic] Star98 - Episode 2: The Lost Senshi”, in rec.arts.anime.fandom[2] (Usenet):
Luna looked at me with a very skeptical face, "Nyao?!" It must have been a cat's way of saying, 'You've got to be kidding!'
2000 November 6, Stefan Gagne, “[AMG] [FanFic] [Lemon] Ah! My Hentai! #3: Angst, Sex, and Bitchin' Motorcycles”, in rec.arts.anime.fandom[3] (Usenet):
"Nyao!" Belldandy purred, pawing at the air a little.
2001 March 25, Aylakitty [username], “Re: If AFD was a family...”, in alt.fan.digimon[4] (Usenet):
I'd Be The Family Kitty Cat! Nyao! Heehee! :::lies down on a rug and purrs:::
2002 November 5, Masamune Washington, “[Ranma] [FanFic] Akane's Fault 13”, in rec.arts.anime.fandom[5] (Usenet):
Ranma shreds the chains and turns on the wild animal, "Nyao!" He is on all fours and yowling like a cat.
2003 February 24, AnimeCat [username], “AnimeCat's Furvey”, in alt.lifestyle.furry[6] (Usenet):
Nyao, I wouldn’t mind being a catgirl, and luring my mate into my bed with a flick of a tail and a seductive purr.
2003 November 26, David Watson, “Re: Megami December”, in rec.arts.anime.misc[7] (Usenet):
Miruru has cat ears and a tail that are part of her body, she acts catlike, says, "nyao" now and again and makes Gabriel's cat allergy flare up something fierce.