Complex sentence: In December 1812, Hart had a duel with Samuel Watson at Shirt Tail Bend, a location on the Indiana side of the Ohio River at Silver Creek, the same place that Clay had duelled with Humphrey Marshall in 1809.
Split into simpler sentences: In December 1812, Hart had a duel with Samuel Watson at Shirt Tail Bend, a location on the Indiana side of the Ohio River at Silver Creek. This is the same place that Clay had duelled with Humphrey Marshall in 1809.