Complex sentence: On September 9,1878 Little Wolf, Dull Knife, Wild Hog, and Left Hand told their people to organize to leave, leaving were 297 (the number could be as high as 353) men, women, and children.
Split into simpler sentences: On September 9,1878 Little Wolf, Dull Knife, Wild Hog, and Left Hand told their people to organize to leave. Leaving were 297 (the number could be as high as 353) men, women, and children.