Members of a “flat earth society” don’t believe that the world is round. A joke went viral in February 2016:
 
“The Flat Earth Society has members all around the globe.”
 
The line also appears in a newsgroup from 2002.
 
   
Wikipedia: Modern flat Earth societies
The International Flat Earth Research Society (IFERS), the first Flat Earth society organization, was founded by Englishman Samuel Shenton in 1956 and was later led by American Charles K. Johnson, who based the organization in his home town of Lancaster, California. The belief lacked representation after Johnson’s death in 2001, until the name was reclaimed in 2004 by Johnson’s self-proclaimed successor “Daniel Shenton” (likely a reference to Samuel Shenton), a man claiming to live in Hong Kong.
   
Google Groups: alt.books.pratchett
LONG repost: WA analysis
Len Oil
4/17/02
(...)
The Flat Earth Society has members all around the globe.
 
But then again, the Round Earth Society also have people from all four corners of the world.
 
Facebook
Daniel Bostock
February 22, 2016
The flat earth society has members all around the globe
 
Twitter
Hayden Vasquez
‏@ItsWeirdScience
The flat earth society has members all around the globe
1:52 PM - 24 Feb 2016
 
Twitter
S A D B O Y S
‏@StoneAustinC
The flat earth society has members all around the globe
3:05 PM - 24 Feb 2016
 
Twitter
Jami Imperial
‏@jami_imperial
“The Flat Earth Society has members all around the globe.”
OOOOOHHHHH THE IRONY….
8:54 AM - 25 Feb 2016
 
tumblr.—tarmorman
The Flat Earth society has members all around the globe
FEBRUARY 26, 2016 (12:52 PM)
 
Twitter
Matt E
‏@matt_erion
The flat earth society has members all around the globe. Just let that sink in. Take as long as you need. #puns #humor @FlatEarthToday
11:18 PM - 24 Apr 2016