Then war can become obsolete, as foreign to us as slavery and public hangings.
The rate at which technology becomes obsolete continues to increase dramatically.
Sacramental confession is enjoined, but has recently become obsolete; prayers for the departed and invocation of saints form part of the services.
The only way of removing the president from office is by impeachment, an institution borrowed from Great Britain, where it had not become obsolete at the time when the United States constitution was adopted.
These need not detain us for long, since, however well some of them may have been executed, regard being had to their epoch, and whatever repute some of them may have achieved, they are, so far as general information and especially classification is concerned, wholly obsolete, and most of them almost useless except as matters of antiquarian interest.