Dr. Henrik Sjögren is generally credited with the discovery of Sjogren’s in 1925, however symptoms of SS are documented as early as 1871. There are several conditions: sicca complex syndrome, Mikulicz’s disease, and Gougerot’s syndrome; that are very similar or even considered Sjogren’s now which were discovered before Dr. Sjögren defined Sjogren’s Syndrome.
Here are a few helpful links to different organizations which help support people with Sjogren’s. I’ve personally found that online support groups are very helpful and encouraging.
Bristish Sjogren’s Syndrome Association (serving all of the United Kingdom: England, Scotland, Wales, Norther Ireland)