2015 (MMXV) was a common year starting on Thursday of the Gregorian calendar, the 2015th year of the Common Era (CE) and Anno Domini (AD) designations, the 15th year of the 3rd millennium and the 21st century, and the 6th year of the 2010s decade.

2014 (MMXIV) was a common year starting on Wednesday of the Gregorian calendar, the 2014th year of the Common Era (CE) and Anno Domini (AD) designations, the 14th year of the 3rd millennium and the 21st century, and the 5th year of the 2010s decade.