[1] After his Promotion (PhD) at the University of Hamburg in 1952, Habicht was an assistant professor there and after his Habilitation degree in 1957 Privatdozent.
In 1973, Habicht went as a faculty professor to the Institute for Advanced Study in Princeton, where he had already belonged, since the previous year, as a permanent member.
Habicht's work focused on Greek epigraphy and Athenian history in Hellenistic times.
Habicht was co-editor of the series of publications Hypomnemata (1962 to 1996) and the American Journal of Ancient History (1976 to 2000).
A complete bibliography of Habicht's writings up to 2002 can be found in volume 32 (2002) of the journal Chiron.