Ehud's Eighty Years and the Reckoning of the Judges

Ehud son of Gera sustained Israel for eighty years. Subtract from these the eleven years of Eglon king of Moab. In his days was Shamgar son of Anath, at the end of his days. And in the days of Eglon it is said, "And it came to pass in the days when the judges judged" (Ruth 1:1), "and Elimelech, Naomi's husband, died" (Ruth 1:3); and it says, "for it grieves me much for your sakes, for the hand of the LORD has gone out against me" (Ruth 1:13); and it says, "In whatever direction they went out, the hand of the LORD was against them for evil" (Judges 2:15). Nahshon died in the second year after the children of Israel went out from the land of Egypt. Salmon was among those who entered the Land, and he died after Joshua. After him, Deborah and Barak forty years; subtract from these the twenty years of the subjugation under Jabin king of Canaan.