References:
- http://www.pewresearch.org/2017/01/10/how-america-changed-during-barack-obamas-presidency/
- http://www.history.com/topics/us-presidents/barack-obama
- https://en.wikipedia.org/wiki/Barack_Obama
- http://www.usnews.com/news/obama/articles/2007/01/16/ten-things-you-didnt-know-about-barack-obama
- http://www.cnn.com/2012/12/26/us/barack-obama—fast-facts/
- http://www.telegraph.co.uk/news/worldnews/barackobama/3401168/Barack-Obama-The-50-facts-you-might-not-know.html
- http://www.fun-facts.org.uk/american-presidents/barack-obama.htm
- http://biography.yourdictionary.com/articles/what-are-some-facts-about-barack-obama.html
- http://us-presidents.insidegov.com/stories/11224/25-facts-about-barack-obama
- http://www.biography.com/people/barack-obama-12782369
- http://www.famousbirthdays.com/people/barack-obama.html
- http://www.stltoday.com/news/national/govt-and-politics/facts-about-barack-obama/collection_b54fa2aa-70d5-5bc1-8ede-f89e20ca68cb.html
- http://www.presidential-power.org/presidencies-timelines/barack-obama-presidency-timeline.htm http://www.justfactsdaily.com/factual-obamas-presidency/
- https://soapboxie.com/us-politics/14-Facts-About-The-Obama-Presidency-That-Most-People-Dont-Know
- https://www.minnpost.com/eric-black-ink/2016/04/fact-checking-obama-years