The 6th century BC authors and editors responsible for the bulk of the history drew on many earlier sources, including (but not limited to) an "ark narrative" (1 Samuel 4:1–7:1 and perhaps part of 2 Samuel 6), a "Saul cycle" (parts of 1 Samuel 9–11 and 13–14), the "history of David's rise" (1 Samuel 16:14–2 Samuel 5:10), and the "succession narrative" (2 Samuel 9–20 and 1 Kings 1–2). The oldest of these, the "ark narrative," may even predate the Davidic era.