Such citations are given to demonstrate a particular orthographical form occurring at a certain date.

I hate it when my uncle comes over to visit; he always sits in the best chair and hogs the remote.

Another possibility is that these represent multiple etiopathophysiologies which interact to produce the observable pathology of schizotypal personality disorder.

A cloggy sensation of the lukewarm fat of meat is upon me (we dined an hour or two ago), and my head is as heavy as so much lead.