The Ukrainian city of Lviv, once a major center of Jewish life in Eastern Europe, is commemorating the 75th anniversary of the annihilation of the city’s Jewish population by Nazi Germany and honoring those working today to preserve what they can of that vanished world.

City authorities presented the honored recipients Sunday with 75 glass keys — replicas of a metal key that once belonged to a Jewish synagogue and an American artist found at a street market in Lviv. The anniversary events, which included a concert performance at the ruins of former synagogues, come amid other attempts to revive suppressed memories of the Jews who once were an integral part of the region.

“God forbid our city once suffered such a misfortune,” Lviv Mayor Andriy Sadovyi said at the ceremony. “Today we cannot even imagine for a moment the pain, humiliation and grief that thousands of Lviv’s people suffered in the last century.”

Iryna Matsevko, deputy director of the Center for Urban History of East Central Europe and an organizer of the anniversary events in Lviv, said it was the first time the western Ukrainian city has acknowledged the historical preservation efforts in such an extensive way.

Consciousness is growing in Ukrainian society of the need to remember the Jews who were annihilated by Nazi forces, with the participation of local people in some cases, during the German occupation of Eastern Europe, Matsevko said.

Initiatives have included introducing Jewish history courses at universities, new research by young Ukrainian scholars and grassroots efforts by volunteers, such as the ones that recovered Jewish gravestones that were used to pave roads and returned them to cemeteries.

“This is part of the process of reviving the memory of the Jewish heritage. Of course, this process is slow. I want it to be quicker, but for the last 10 years we have seen how the Jewish heritage is returning to people’s consciousness and a lot of activities are taking place,” Matsevko said. “It is very important that people are being acknowledged for their work in Jewish heritage.”

Before World War II, Lviv and the surrounding area belonged to Poland. Then called Lwow, it was the third largest Jewish community in prewar Poland after Warsaw and Lodz, with most working as merchants, manufacturers or artisans. Before World War I, Lviv and the surrounding area were part of the eastern Galicia region of the Austro-Hungarian empire and the city was called by its German name, Lemberg.

In June 1941, Germany attacked the Soviet Union, its former ally. When the German forces entered the city, they and their Ukrainian collaborators massacred Jews in the city and countryside. While occupying the area, Germans murdered Jews in the ghetto, the Belzec death camp and a forced labor camp, Janowska, with the final annihilation occurring in 1943, the anniversary observed on Sunday.

Of a population of about 150,000 Jews, only an estimated 1 percent survived.

In the postwar years, with Ukraine part of the Soviet Union, the memories of the murdered Jews began to vanish. Historian Omer Bartov has called the area a “land of memory and oblivion, coexistence and erasure, high hopes and dashed illusions.”

The remembrance work is taking place as Ukraine finds itself mired in crisis and conflict following Russia’s annexation of Ukraine’s Crimean Peninsula and a continuing Russia-backed insurgency in the east. Nationalism has been on the rise, and some Ukrainians laud the Nazi-affiliated irregulars who fought against the Soviet Army in World War II.

To what extent this has led to greater anti-Semitism is a matter of dispute. Some of the people trying to sustain the history of Jewish life in western Ukraine think the amount of anti-Semitism is exaggerated as part of a Russian propaganda effort.

Among those honored was Marla Raucher Osborn, an American who heads Rohatyn Jewish Heritage. The group’s projects include restoring a Jewish cemetery in nearby Rohatyn.

Osborn said she was honored to be acknowledged along with the local activists “working quietly in local communities, recovering Jewish memory with little or no knowledge of their projects outside of those communities, especially among the distant Jewish diaspora.”

The glass keys were the work of New Mexico-based artist Rachel Stevens, who found the rusted synagogue key on which they were based in February while seeking remnants of Jewish culture in eastern Galicia as part of a research project.

Stevens used glass for the replicas because in Jewish tradition the material “represents the fragility of life.” Creating them “became a tangible way for me to express my grief about the past and my hope for the future,” she said.

“The idea for this artwork seems almost mystically delivered to me,” Stevens said.

(AP)