generate questions: The length of the Rhine is conventionally measured in "Rhine-kilometers" (Rheinkilometer), a scale introduced in 1939 which runs from the Old Rhine Bridge at Constance (0 km) to Hoek van Holland (1036.20 km). The river length is significantly shortened from the river's natural course due to number of canalisation projects completed in the 19th and 20th century.[note 7] The "total length of the Rhine", to the inclusion of Lake Constance and the Alpine Rhine is more difficult to measure objectively; it was cited as 1,232 kilometres (766 miles) by the Dutch Rijkswaterstaat in 2010.[note 1]
What is the conventional method to measure the Rhine? {sep_token} When was the scale to measure the Rhine introduced? {sep_token} Where does the Rhine river's measurement begin? {sep_token} Where does the Rhine river's measurement end? {sep_token} What has shortened the Rhine river? {sep_token} What is the conventional measurement of the Rhine? {sep_token} When was the measurement of the Rhine introduced? {sep_token} Where does the Rhine begin? {sep_token} Why has the Rhine been shortened? {sep_token} Where does the Rhine end?