An exhibition at the Vienna State Opera house that opened on Monday details how its Jewish employees were purged under Nazi rule, Reuters reported. Few of the 92 who lost their jobs and survived the war were reinstated. The exhibition is part of a national commemoration of Austria’s willing acceptance of annexation by Hitler’s Germany, whose forces took control on March 12, 1938. “The Opera is one of the institutions ready to face up to its past even if it was painful at times,” the Austrian chancellor, Alfred Gusenbauer, said in opening the exhibition. “Such institutions in Austria in 2008 are sadly still the exception.” The anniversary has prompted a wave of reflection, with special television programs and an appeal by the Roman Catholic Church to learn the lessons of the past. A candlelight vigil will take place on Wednesday, the anniversary, at the city’s Heldenplatz (Heroes’ Square), where jubilant Austrians gathered to greet Hitler days after the annexation, and both houses of Parliament will hold a special joint session on Wednesday morning to mark the anniversary.