students are divided according to performance. The secondary level begins at about age 12 and usually lasts 3 years. In the secondary school district there are 174 students who are in special or remedial classes, of which 86 or 49.4% are female, 37 or 21.3% are not Swiss citizens and 32 or 18.4% do not speak German natively. Notable residents Karl Friedrich Gegauf (1860–1926) entrepreneur Fritz Gegauf (1893–1980 in Steckborn) inventor of the sewing machine and founder of Bernina International Susie Wolff MBE (born 1982) retired DTM Race car driver, lives in Ermatingen References External links www.steckborn.ch BERNINA International site History and old pictures of Steckborn Cities in Switzerland Municipalities of Thurgau Cultural property of national significance in Thurgau