World bows head and tweets in memory of holocaust
The United Nations, world leaders, and noted celebrities reflected on the meaning of International Holocaust Remembrance Day on social media.
Survivors attend a ceremony in the former Nazi German concentration and extermination camp Auschwitz-Birkenau in Oswiecim, Poland January 27, 2016, to mark the 71st anniversary of the liberation of the camp by Soviet troops and to remember the victims of the HolocaustUpdated: 
