The Code of Hammurabi

If a man his wife has borne him sons, and his maidservant has borne him sons, the father in his lifetime has said to the sons which the maidservant has borne him 'my sons,' has numbered them with the sons of his wife, after the father has gone to his fate, the sons of the wife and the sons of the maidservant shall share equally in the goods of the father's house; the sons that are sons of the wife at the sharing shall choose and take.