Julius Caesar was no aspiring autocrat seeking to realize the imperial future but an unusually successful republican leader who was measured against the Republic's traditions and its greatest heroes of the past. Catastrophe befell Rome not because Caesar (or anyone else) turned against the Republic, its norms and institutions, but because Caesar's extraordinary success mobilized a determined opposition which ultimately preferred to precipitate civil war rather than accept its political defeat. Based on painstaking re-analysis of the ancient sources in the light of recent advances in our...