Tags: Year.
2011 (MMXI)was a common year starting on Saturday (link will display the full calendar) of the Gregorian calendar the 2011th year of the Common Era (CE) and Anno Domini (AD) designations the 11th year of the 3rd millennium the 11th year of the 21st century and the 2nd year of the 2010s decade.The United Nations designated 2011 as the International Year of Forests and the International Year of Chemistry.