sentences:  Until 1986, they were called "military vicariates" and had a status similar to that of apostolic vicariates which are headed by a bishop who receives his authority by delegation from the Pope.The apostolic constitution Spirituali Militum Curae of 21 April 1986 raised their status, declaring that the bishop who heads one of them is an "ordinary", holding authority by virtue of his office, and not by delegation from another person in authority.