The Time Line of the Centuries with Roman Numerals is reduced in length to show 21 centuries before the zero (B.C.E.) and 21 centuries after the zero (C.E.). The children will need 42 hundred squares from the Golden Bead Bank to emphasize all the centuries. There are two sets of labels (42 Arabic/Roman numerals for B.C.E. and 42 Arabic/Roman numerals for C.E.) to be placed in sequential order below the squares representing the centuries. The exercise consists of laying out all the numerals in sequential order and copying all of them on the time line.