essential parts of, [265]

use of glyph for "20" with, [92], [130], [254], [260], [263]

used in codices, [251]-[266]

plates showing, [254], [260], [262], [263]

used in divination, [251]

wheel of days, [43]

See also Year, sacred.

Translation of glyphs—

errors, [154]-[155]

methods, [134]-[155]