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The Summa Theologica (or the Summa Theologiae or simply the Summa, written 1265–1274) is the most famous work of Thomas Aquinas (c. 1225–1274) although it was never finished.

The Summa Theologica (or the Summa Theologiae or simply the Summa, written 1265–1274) is the most famous work of Thomas Aquinas (c. 1225–1274) although it was never finished.

A recording of parts of Lewis' journal which include: first encounters with the Sioux; wintering at the Mandan villages; Sacajawea; portage of the Great Falls of the Missouri; horse trading with th