[{"data":1,"prerenderedAt":5},["ShallowReactive",2],{"year-excerpts-1666":3},{"introduction-of-king-s-plate-races-1666":4},"Under King Charles II, the King's Plate Races were introduced in 1666, designed to favor fast yet strong horses capable of winning 4-mile races with a 12-stone weight load. This significantly improved the breed.",1789333834546]