Not much is known about Foucault’s time in Hamburg in 1959-60, except that he was working on his translation of Kant’s Anthropology at this time. The preface to History of Madness was also written there. A new piece in German by Rainer Nicolaysen looks at this period in detail, via Foucault Blog
Foucault in Hamburg: Anmerkungen zum einjährigen Aufenthalt 1959/60
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