On the same square where thousands gave Adolf Hitler an adoring welcome in 1938, Austrians marked the 70th anniversary of Nazi Germany's annexation by lighting 80,000 candles: one for every person who perished under the regime. The somber "Night of Silence" remembrance Wednesday - in stark contrast to the jubilation that greeted Hitler - lit up Vienna's Heldenplatz, or Heroes' Square, with what participants hoped would be a simple message: never again. "So many bad things happened. We must never forget," said Marcus Mor, a 28-year-old student of computer science who joined the throng. "We have to live with this and do something to make sure history never repeats itself." Chancellor Alfred Gusenbauer and President Heinz Fischer presided over a special joint session of parliament, where they and other leaders delivered soul-searching speeches about the alpine country's darkest chapter.