Flat Earth Society 2020 Conference Mug

Modern flat Earth societies are organizations that promote the pseudoscientific belief that the Earth is flat while denying the Earth's sphericity, contrary to over two millennia of scientific consensus. Such groups date from the middle of the 20th century; some adherents are serious and some are not. Those who are serious are often motivated by religion or conspiracy theories. Through the use of social media, flat Earth theories have been increasingly espoused by individuals unaffiliated with larger groups.