Sentence:  Would we want a future-day Gibbon or Macaulay recounting the <WSD>saga</WSD> of America with movies as his prime source of knowledge ? 
Meaning of the word marked with <WSD> tags:  a narrative telling the adventures of a hero or a family; originally (12th to 14th centuries) a story of the families that settled Iceland and their descendants but now any prose narrative that resembles such an account