From the United States Holocaust Memorial Museum website:
"In 2005 the UN General Assembly designated January 27—the anniversary of the liberation of Auschwitz-Birkenau—as International Holocaust Remembrance Day. On this annual day of commemoration, every member state of the UN has an obligation to honor the victims of the Nazi era and to develop educational programs to help prevent future genocides.
"This year’s theme is Children and the Holocaust. Watch or read Secretary-General Ban Ki-moon’s remarks on the 1.5 million Jewish children and the tens of thousands of other youths who died during the Holocaust.”