I wrote my first chatbot for IRC, and then later on for AIM. Such great memories!
The first chapter of my book, "Building Voice-Enabled Apps with Alexa" covers several of these topics, including XDCC chatbots, Eliza, The Loebner Prize, and a lot more of chatbot history. Fun stuff!
"Building Voice-Enabled Apps with Alexa"
https://library.oreilly.com/book/9781939902443/building-voic...