At Eucharist, Christ's great sacrifice that redeemed the world is made present

The "Middle Ages" in Western Europe includes which of the following time periods?

a. the beginning of the Early Christian period through the 13th or 14th centuries b. the end of the Roman Empire through the Byzantine period c. the beginning of Byzantine period through the end of the Roman Empire d. A.D. 300–A.D. 1600

What did the North American Sioux Open Circle Dance celebrate?

A. The harvest B. Springtime C. The first day of summer D. The reign of their chief