In commemoration of the 75th anniversary of Kristallnacht, the start of Nazi pogroms against the Jews in Germany, Pope Francis referred to the Jewish people as the "big brothers" of Roman Catholics in words of solidarity.
Francis said the state-sponsored ransacking of Jewish homes, businesses and synagogues, on the night of Nov. 9, 1938, in which scores of Jewish people were killed, marked a step towards the Holocaust and should not be forgotten.
The pogrom, also known as 'The Night of Broken Glass', saw Nazi thugs plunder Jewish businesses throughout Germany, torch some 300 synagogues and round up about 30,000 Jewish men for deportation to concentration camps.
"We renew our closeness and solidarity to the Jewish people, our big brothers, and pray to God that the memory of the past and of the sins of the past helps us to be always vigilant against every form of hate and intolerance," Francis told thousands in St. Peter's Square in his Sunday mass.
In remarks at the start of the weekly cabinet meeting, Israeli Prime Minister Benjamin Netanyahu linked the events 75 years ago to current manifestations of anti-Semitism.
"Today, we mark 75 years since Kristallnacht. It is very disturbing that precisely now we are witness to the phenomenon of swastikas and Nazi-style salutes on Palestinian networks," said Netanyahu. "This is a direct result of the continued wild incitement against the State of Israel. This is not the way to achieve peace."
Meanwhile in Germany, the 75th anniversary of Kristallnacht was remembered with solemn ceremonies and touching and innovative tributes to the victims.
Rather than conducting one central memorial event, Germany organized smaller commemorations throughout the weekend including striking art projects, Twitter initiatives and silent vigils.
On November 7, 1938, German diplomat Ernst vom Rath was assassinated by 17-year-old Herschel Grynszpan, a German-born Polish Jew resident in Paris – whose family was forced out of Hitler’s Germany. The assassination was seized as a pretext during the nights of November 9-10 for coordinated attacks against Jews throughout Nazi Germany. The attackers were paramilitary forces and non-Jewish civilians.
As part of the unconventional memorials, Berliners and tourists during the day polished around 5,000 "Stolpersteine" memorials for Jews in their neighborhoods.
The "stumbling blocks" are small plaques bearing the names of Holocaust victims embedded in the street in front of their last known address, along with their dates of birth and facts about their deportation.
"It's sad for me, very, very sad," said Tamar Maier, an Israeli whose family fled Vienna after their business was smashed during Kristallnacht, as she cleaned one of the plaques.
"I think of all these people, who didn't know what was happening... It's simply horrible. And that's why it's very important to remember, it's essential to do so."
City magazines have printed advertisements for the campaign, complete with an attached cleaning cloth for volunteers.
Meanwhile around 120 retailers in Berlin have affixed adhesive film to their shop windows depicting the jagged pattern of broken glass to commemorate the destruction leveled against Jewish merchants.
The stickers were concentrated in areas of central Berlin that were targeted by the Nazi looters in 1938, with participants including Germany's most famous department store KaDeWe.
President Joachim Gauck paid his respects at a synagogue in the eastern city of Eberswalde near Berlin which was destroyed in the rampage, and where there is now a memorial made from the building's rediscovered foundations and freshly planted trees.
He was due to travel to nearby Frankfurt an der Oder, where he was to speak ahead of a memorial concert.
On Friday, the President paid a visit to a former workshop whose owner fought to save his Jewish staff from deportation.
Otto Weidt, whose workshop is now a museum in central Berlin, manufactured brushes and brooms, and his business was staffed mostly by deaf and blind Jews.
The president described Weidt's workshop as an "islet of humanity" showing there was always a choice even in difficult times to do good and follow one's conscience.
Weidt provided false papers or hid his Jewish staff from the Nazis.
Churches in Berlin have planned a silent march to the site of an obliterated synagogue in the city centre in which Mayor Klaus Wowereit was due to take part.
'Honest, emotional concern'
The head of the Central Council of Jews in Germany, Dieter Graumann, had called for "honest, emotional concern" on the part of Germans on the anniversary and urged continued vigilance against hatred.
"The lesson that we must draw is as simple as it is clear: never again will we allow ourselves to be attacked because of our Judaism. Never again will we allow ourselves to be intimidated," he told Saturday's Neue Osnabruecker Zeitung.
Among some of the more unconventional forms of remembrance this year is a Twitter account, @9Nov38, launched by historian Moritz Hoffmann last month and called "Heute vor 75 Jahren" (75 Years Ago Today), offers historical accounts of the repressive measures.
"Sunrise in Kassel. Few people on the street, but a lot of glass shards and destroyed furnishings in front of more than 20 shops," read one tweet.
The account has already attracted more than 4,200 followers, with organizers saying they hope to reach a younger generation of Germans by harnessing social media.
Against the backdrop of the commemorations, a report by the EU Fundamental Rights Agency (FRA) on Friday showed that anti-Semitism has deepened across Europe over the past five years, facilitated by social media and file-sharing websites.
Last week Chancellor Angela Merkel urged Germans to be watchful for the dangers of anti-Semitism, calling Kristallnacht "one of the darkest moments in German history".
While she hailed the flourishing Jewish community in Germany now numbering more than 200,000 people, she lamented "the reality that no Jewish institution can be left without police protection" due to ongoing concerns over anti-Semitism.
In Austria, where Jews were also targeted in the wake of the German annexation, President Heinz Fischer was to speak Sunday during ceremonies organized by the Jewish community.
And in Warsaw, a thousand people chanting "No to fascism and nationalism" and "Holocaust, never again" marched on Saturday to the spot from where the Jews of the Warsaw ghetto were deported to concentration camps.