a diary entry by a person who lived in the period under discussiona modern biography of a person in the period under discussionan account of a nineteenth-century battle in a twenty-first century textbookan article in an academic journalWhat is an example of a primary source?Elon.io is an online learning platformWe have an entire course teaching World History 2 grammar and vocabulary.Start learning World History 2 nowYour questions are stored by us to improve Elon.ioYou've reached your AI usage limitSign up to increase your limit.