The year 5771 was one cycle before the "end". It was 15*27 years after 5366, as well as 15*18 years after 5501.
Year 5771 was also three cycles of 27 years before "end" of the year 5852, 13*27 years after 5501, 351 years, 18*27 years after 5366, 490*18 years after year -2968.
Year 5751 was a pivotal year indeed.