I see History of Knowledge has migrated from WordPress.com to Hypotheses.org. Given all the nonsense that Automattic has been putting its clients through, I am glad. It should have a nice long life on that platform.
The current domain, https://historyofknowledge.net points or forwards there, although I don’t know if it will over the long term. Fortunately, the new domain pops right up on a DuckDuckGo search for “History of Knowledge blog” – https://historyofknowledge.hypotheses.org.