![President Barack Obama smiles as the daughter of Martin Luther King III covers her ears as they ring the bell during the "Let Freedom Ring "ceremony to commemorate the 50th anniversary of President Barack Obama smiles as the daughter of Martin Luther King III covers her ears as they ring the bell during the "Let Freedom Ring "ceremony to commemorate the 50th anniversary of](https://c8.alamy.com/comp/2DYT1FB/president-barack-obama-smiles-as-the-daughter-of-martin-luther-king-iii-covers-her-ears-as-they-ring-the-bell-during-the-let-freedom-ring-ceremony-to-commemorate-the-50th-anniversary-of-the-march-on-washington-for-jobs-and-freedom-at-the-lincoln-memorial-on-the-national-mall-in-washington-dc-usa-on-august-28-2013-photo-by-olivier-doulieryabacapresscom-2DYT1FB.jpg)
President Barack Obama smiles as the daughter of Martin Luther King III covers her ears as they ring the bell during the "Let Freedom Ring "ceremony to commemorate the 50th anniversary of
![U.S. President Barack Obama Speaks During The Let Freedom Ring Ceremony At The Lincoln Memorial August U.S. President Barack Obama Speaks During The Let Freedom Ring Ceremony At The Lincoln Memorial August](https://previews.123rf.com/images/americanspirit/americanspirit1312/americanspirit131200227/24619371-%EB%B2%84%EB%9D%BD-%EC%98%A4%EB%B0%94%EB%A7%88-%EB%AF%B8%EA%B5%AD-%EB%8C%80%ED%86%B5%EB%A0%B9%EC%9D%80-%EB%A7%88%ED%8B%B4-%EB%A3%A8%ED%84%B0-%ED%82%B9-%EC%A3%BC%EB%8B%88%EC%96%B4-martin-luther-king-jr-%EB%B0%95%EC%82%AC%EC%9D%98-%EA%BF%88%EC%9D%B4%EC%9E%88%EB%8B%A4-%EC%97%B0%EC%84%A4-50-%EC%A3%BC%EB%85%84%EC%9D%84-%EA%B8%B0%EB%85%90-%ED%95%B4-2013-%EB%85%84-8-%EC%9B%94-28-%EC%9D%BC-%EC%9B%8C%EC%8B%B1%ED%84%B4-dc%EC%97%90%EC%84%9C-%EB%A7%81%EC%BB%A8.jpg)
U.S. President Barack Obama Speaks During The Let Freedom Ring Ceremony At The Lincoln Memorial August
Barack Obama - "We - Image 2 from Celebs, Politicians "Let Freedom Ring" at the Lincoln Memorial | BET
![President Obama calls upon Americans to overcome divisions as he marks 50th anniversary of civil rights leader Martin Luther King Jr's historic 'I have a dream' speech | The Independent | The Independent President Obama calls upon Americans to overcome divisions as he marks 50th anniversary of civil rights leader Martin Luther King Jr's historic 'I have a dream' speech | The Independent | The Independent](https://static.independent.co.uk/s3fs-public/thumbnails/image/2013/08/28/21/Obama-mlk-gt.jpg?quality=75&width=982&height=726&auto=webp)
President Obama calls upon Americans to overcome divisions as he marks 50th anniversary of civil rights leader Martin Luther King Jr's historic 'I have a dream' speech | The Independent | The Independent
![U.S. President Barack Obama, First Lady Michelle Obama, Caroline Kennedy, Stock Photo, Picture And Rights Managed Image. Pic. VOA-VOA74-0158 | agefotostock U.S. President Barack Obama, First Lady Michelle Obama, Caroline Kennedy, Stock Photo, Picture And Rights Managed Image. Pic. VOA-VOA74-0158 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/e4ccba40c589a736a3c8b8759b59eaa4/voa-voa74-0158.jpg)
U.S. President Barack Obama, First Lady Michelle Obama, Caroline Kennedy, Stock Photo, Picture And Rights Managed Image. Pic. VOA-VOA74-0158 | agefotostock
![Photo: Let Freedom Ring event held to commemorate the 50th anniversary of the 1963 March on Washington - WAX20130828219 - UPI.com Photo: Let Freedom Ring event held to commemorate the 50th anniversary of the 1963 March on Washington - WAX20130828219 - UPI.com](https://cdnph.upi.com/pv/upi/6906b04a01261059eff7ebc0a46831b3/USA-CIVIL-RIGHTS-OBAMA.jpg)
Photo: Let Freedom Ring event held to commemorate the 50th anniversary of the 1963 March on Washington - WAX20130828219 - UPI.com
![President Obama to deliver speech on his vision 50 years after Martin Luther King's famous address | Daily Mail Online President Obama to deliver speech on his vision 50 years after Martin Luther King's famous address | Daily Mail Online](https://i.dailymail.co.uk/i/pix/2013/08/28/article-2403775-1B81A10A000005DC-27_964x611.jpg)