First World problem is a slang term used to refer to issues in First World nations that are complained about only because of the absence of more pressing concerns. The term was added to the "Oxford Dictionary Online" in November 2012, and to the "Macquarie Dictionary Online" in December 2012.
First World problem is a slang term that was created in 2012.
The statement was added to the two dictionaries in 2012, but it may or may not have been created in 2012.