qnli question: What does George D. Chryssides suggest the changing views and dates of the Jehovah's Witnesses can be attributed to changed understandings of? sentence: George D. Chryssides has suggested that with the exception of statements about 1914, 1925 and 1975, the changing views and dates of the Jehovah's Witnesses are largely attributable to changed understandings of biblical chronology than to failed predictions.