Complex sentence: Her debut was in 1897 in Hermannstadt, now Sibiu, in Romania, achieving stardom in Vienna in 1901 as O Mimosa San in "The Geisha".
Split into simpler sentences: Her debut was in 1897 in Hermannstadt, now Sibiu, in Romania. She achieved stardom in Vienna in 1901 as O Mimosa San in "The Geisha".