Complex sentence: In September 1962, after a tour of mainland U.S. universities, Obama traveled to Cambridge, Massachusetts, where he began a graduate fellowship in economics at Harvard University and rented an apartment in a rooming house near Central Square in Cambridge.
Split into simpler sentences: In September 1962, after a tour of mainland U.S. universities, Obama traveled to Cambridge, Massachusetts, where he began a graduate fellowship in economics at Harvard University. He rented an apartment in a rooming house near Central Square in Cambridge.