text: This was the most popular number from which a Roman praenomen was derived, an example of which was the poet Horace.
full_question: This was the most popular number from which a Roman praenomen was derived, an example of which was the poet Horace. During a period of time named for this number, Quintus Sosius Falco led a failed coup attempt against Pertinax; that “year” of this many emperors concluded with Septimius Severus assuming power. The first rulers from the Nerva-Antonine Dynasty are commonly referred to as this many “good emperors.” For 10 points, give this number whose Latin name inspired the number of dots in a “quincunx.”
first_sentence: This was the most popular number from which a Roman praenomen was derived, an example of which was the poet Horace.