The Book of Samuel is considered by biblical scholars to be part of the Deuteronomic history. Due to its length, it was eventually split into two books, 1 Samuel and 2 Samuel. The Deuteronomic history consists of the Books of Joshua, Judges, 1 and 2 Samuel and 1 and 2 Kings. The principal author of the history is called the 'D' source, or Deuteronomist, who wrote during the seventh century BCE, in Judah. These books form an integrated block of text covering the period from the assumed conquest of Canaan through to the end of the kingdom of Judah and the beginning of the Babylonian Exile.