“The Era of Manifestations” was a period from 1837 to the mid-1850s when Shakers came under a spiritual revival marked by visions and ecstatic experiences among the followers.
But the ban on Sunday racing wasn't imposed by the town, or even the state. Rather, it's the result of a court injunction issued in 1959, only a couple of years after the track was built from the remnants of an old gravel pit.