Although the yin-yang li has been continuously employed by the Chinese, foreign calendars were introduced to the Chinese, the Hindu calendar, for instance, during the T'ang (Tang) dynasty (618-907), and were once used concurrently with the native calendar. This situation also held true for the Muslim calendar, which was introduced during the Yüan dynasty (1206-1368). The Gregorian calendar was taken to China by Jesuit missionaries in 1582, the very year that it was first used by Europeans. Not until 1912, after the general public adopted the Gregorian calendar, did the yin-yang li lose its primary importance.
Day Overview: We start at the confluence of the Saale and the Elbe (sometimes called the Thüringische or Sächsische Saale because there are two rivers in Germany named Saale). First we cross the Saale on a ferry, and then we bike overland to Barby and cross on another ferry before we can ride north along the Elbe again. Expect some primitive path conditions today. Besides cobblestone, you’ll find cement plates with rough joints that are called Plattenweg , pavement, dirt, and the worst of all is deep sand. There are some hills north of Dornburg in the recreation area near Pretzien.