What time period does Sallust's Historiae cover?

Sallust's "Historiae" covers the time period from 78-67 BC. This work, although largely incomplete, was focused on the events leading up to the Jugurthine War and covers key historical figures and moments in Roman history during that turbulent time. Sallust was particularly interested in the decline of Rome’s political morals and the impact of corruption and ambition on the state.

The selection of this specific time frame is significant as it encompasses a critical era of conflict and political maneuvering that reflects Sallust's themes of decay and moral decline. It’s a period that not only highlights the political landscape of Rome but also sets the stage for future civil strife, thus providing context to both the socio-political environment of the time and Sallust's motivations in writing.

Other time periods presented in the options do not align with the focus of "Historiae" as accurately, making them less relevant to Sallust's objectives and themes in his historical narrative.