Complex sentence: From 1837-1841 the Grimm Brothers joined five of their colleague professors at the University of Göttingen to form a group known as the Göttinger Sieben (The Göttingen Seven).
Split into simpler sentences: From 1837-1841 the Grimm Brothers join five of their colleague professors at the University of Göttingen. This group is known as the Göttinger Sieben (lit: The Göttingen Seven).