original: Its use spanned the Golden Age of Latin literature — broadly the 1st century BC and the early 1st century AD — possibly extending to the Silver Age — broadly the 1st and 2nd centuries.
simplifications: Its use spanned the Golden Age of Latin literature — broadly the 1st century BC and the early 1st century AD.  It possibly extended to the Silver Age — broadly the 1st and 2nd centuries. It was used during the Golden Age and early Silver Age of Latin literature. Its use spanned the Golden Age of Latin literature. It was used during the Golden Age of Latin literature — the 1st century BC through the early 1st century AD. It was possibly used during the Silver Age — the 1st and 2nd centuries. It was in the Golden Age of Latin literature, about the 1st century BC and the early 1st century AD.  It might have gone into the Silver Age, the 1st and 2nd centuries. It was used during the Golden of Age of Latin literature and may have been used during the Silver Age. Its was used during the Golden Age of Latin literature to the Silver Age. The Golden Age of literature is 1st century BC to early 1st century AD while the Silver Age is 1st and 2nd centuries. It was used in the Golden Age of Latin writing, mainly the 1st century BC and AD, maybe going into the Silver Age (1st/2nd centuries). It was used in the Golden Age and maybe the Silver Age of Latin literature. Its use extends over the Golden Age of Latin literature.