In the history of the Catholic Church, I know there's been extra days of fasting and prayer called for by the Pope and Bishops, but other than prior to the Battle of Lepanto and today (March 19th 2020, The Solemnity of St. Joseph) at 9:00 PM Rome Time. Has the Pope ever asked all Catholics to pray the Rosary in unity (or as simultaneously as possible prior to mass communication and computerized synchronization)?
I think the phrase “in unity” or something along those lines would be better than “simultaneously”.– Ken Graham ♦Mar 19, 2020 at 14:53
@KenGraham good point, simultaneous prayer isn't even possible over skype– Peter Turner ♦Mar 19, 2020 at 14:56
Several encyclicals from at least Leo XIII onward have promoted the rosary; cf. William's The Rosary: Its History and Meaning pp. 137-46.– GeremiaMar 19, 2020 at 21:49