Police have opened an investigation into online threats against Israel's president following his condemnation of "Jewish terrorism" after a firebombing killed a Palestinian child.
Israeli Prime Minister Benjamin Netanyahu urged European Jews to move to Israel after a Jewish man was killed in an attack outside Copenhagen's main synagogue
US President Barack Obama marked the 70th anniversary of the liberation of Auschwitz with a warning that the world needs to combat resurgent anti-Semitism.
Hungarian Jews and Soviet army veterans gathered to commemorate the 70th anniversary of the liberation by the Red Army of the Budapest ghetto in World War II.
Millions marched against terrorism in the largest protests France has ever seen, led by world leaders in Paris uniting in tribute to the victims of Islamist attacks.
Belgium's King Philippe visited the Jewish Museum in Brussels in a show of support for the Jewish community and the relatives of four people killed in a gun attack there in May.
Sir Nicholas Winton, who saved hundreds of Jewish children in Prague from the Nazis in the run-up to World War II, was given the Czech Republic's top honour.
Sweden's Holocaust hero Raoul Wallenberg, who saved tens of thousands of Hungarian Jews before mysteriously dying in a Soviet prison, was honored with the Congressional Gold Medal at the US Capitol.