This is the closing episode of the series' first arc, and it does two things. It forges the medieval inheritance — Magna Carta, Bracton's "the law makes the king," Aquinas's fourfold law and his lex iniusta non est lex, the line that ran straight to Martin Luther King's Birmingham jail cell — and then it stands on the summit and looks back across the whole road: Athens, Jerusalem, Rome, and the House of Wisdom, four civilizations braided into one cord and handed to the men wh