Ossetic and Circassian are both under the category ‘Slavic’. This is incorrect: Circassian is a separate language group and Ossetic is an Iranian language. This needs changing this since it could cause misconceptions about the nature of the languages and the people that live in those regions.
Source for Circassian: Gordon, Raymond G., Jr. (ed.), 2005. Ethnologue: Languages of the World, Fifteenth edition. Dallas, Tex.: SIL International. Online version: http://www.ethnologue.com/.
Source for Ossetic: Windfuhr, Gernot (2013). The Iranian Languages. Routledge. ISBN 978-1-135-79703-4.