His earlier work focussed on the later Roman Republic, and culminated in The Last Generation of the Roman Republic, a work often cited as a response to Ronald Syme's The Roman Revolution; Gruen's thesis is that the Republic was not in decay, and so not necessarily in need of "rescue" by Caesar Augustus and the institutions of the Empire.
He later worked on the Hellenistic period and on Judaism in the classical world.
Books
Roman Politics and the Criminal Courts, 149-78 BC (Cambridge MA, 1968)
The Image of Rome (ed.) (Englewood Cliffs NJ, 1969)
Imperialism in the Roman Republic (ed.) (NY, 1970)
The Roman Republic (Washington DC, 1972)
The Last Generation of the Roman Republic (Berkeley, 1974; pb edition 1995)
The Hellenistic World and the Coming of Rome, 2 vols. (Berkeley, 1984; pb 1986)
Studies in Greek Culture and Roman Policy (Leiden, 1990; pb 1996))
Culture and National Identity in Republican Rome (Ithaca, 1992; pb 1994)
Images and Ideologies: Self-Definition in the Hellenistic World (co-ed.) (Berkeley, 1993)
Hellenistic Constructs: Essays in Culture, History, and Historiography (co-ed.) (Berkeley, 1997)
Heritage and Hellenism: The Reinvention of Jewish Tradition (Berkeley, 1998)
Diaspora: Jews amidst Greeks and Romans (Cambridge MA, 2002)
External links
Gruen's Home page (http://history.berkeley.edu/faculty/Gruen/) at the UCB History Department web site
Short biography (http://www.urel.berkeley.edu/faculty/gruen.html) at UCB's Faculty Research Lectures web site
Gruen then argues that such a measure was hardly the turning point in the Republic's fate that I might like to think it was, "[because] there had been a gradual reduction of property requirements for military personnel beginning well before Marius.
Gruen may be correct when he insists upon the comparatively low salary soldiers were paid under Marius, but salary is merely a technical distinction for professional.
Gruen's interpretation does not necessarily have to exclude the argument that Sulla - and Marius before him - provided models and paved the way for the rise of Julius Caesar, "Dictator for Life." Gruen's interpretation focuses solely on the very limited period of Sulla's political career, which was fairly short.