This document lists 17 contributions and accomplishments of Barack Obama during his presidency, including ending the war in Iraq, eliminating Osama bin Laden, repealing Don't Ask Don't Tell, improving fuel efficiency standards, passing health care reform, and investing in renewable energy technology. It was prepared by Dewang Gamit and provides an overview of Obama's policies and achievements as the 44th President of the United States from 2009 to 2016.