Some past threads. Others?
History of Lisp (1979) [pdf] - https://news.ycombinator.com/item?id=23201888 - May 2020 (11 comments)
History of Lisp (1979) [pdf] - https://news.ycombinator.com/item?id=17846522 - Aug 2018 (10 comments)
History of Lisp - https://news.ycombinator.com/item?id=5825698 - June 2013 (20 comments)
History of Lisp by John McCarthy (1979) - https://news.ycombinator.com/item?id=372385 - Nov 2008 (1 comment)