Complex sentence: Frank M. Ziebach established the second newspaper in the area that became South Dakota, the "Weekly Dakotan", in Yankton on June 6,1861, bringing his outfit from Sioux Falls by team and wagon.
Split into simpler sentences: Frank M. Ziebach established the second newspaper in the area that became South Dakota. He started the "Weekly Dakotan" in Yankton on June 6,1861, bringing his outfit from Sioux Falls by team and wagon.