I was thinking about the troubled times of the Raskol and Tsar Peter I, and how St. Anna of Kashin was infamously "decanonized" or at least her cultus was suppressed since the Staroversky were trying to adopt her as proof of their teachings. Throughout Russian Church history, quite a few Saints were removed from the Typikon, such as St. Maximos the Greek, the Martyrs Anthony, John and Eustathius of Vilnus. And of course know the heretical MP took off many New Martyrs from the Calendar, such as St. Joseph of Petrograd (though in that case it was done deliberately with the intention of destroying the Praxis of the Church)
We also know how St. Nikodemios the Hagiorite and St John Maximovitch added many Western Saints back onto the Calendar which have led to a revival of veneration among Orthodox Christians, and we read about how even into recent times, people mistakingly thought Clement of Alexandria or Tertullian were Saints, and that was subsequently and correctly stopped.
Besides St. Anna of Kashin however, I am unfamiliar of any formal ceremonies taking place to restore a cultus. With Western Saints, I know that it's obvious they're Saints, but prior to the 18th century was there attempts to add them back onto the calendar? Did trying to restore or revive the veneration of Saints occur much in Church history besides the 18th century? Is there canonical precedents set for how to do this? How hard/easy is it to do on the ground level?
