sentences:  There are generally thought to be the work of at least six scribes and four artists in the volume, but there is disagreement about their identity, and who was responsible for what.Published opinions until the 1960s were mostly that the manuscript was made before c.1125, or even before c.1123; this was modified in the 1980s to the decade c.1120-1130; while in the 1990s and 2000s several scholars have proposed dates in the 1130s.Attributions dating the manuscript to after 1145, or after 1155, have not gained general acceptance.