Caligula opened with popular reforms—amnesties, tax relief, transparency—but after a severe illness turned to theatrical provocations, fiscal exactions, and ritual self‑cult, alienating elites and Praetorians and prompting his assassination: coercive strategy over madness.
From Augustus to Constantine, the Praetorian Guard evolved from imperial protectors into kingmakers—policing Rome and wielding military force to decide succession.
