Funding to run the Observatory ceased and Khayyam's calendar reform was put on hold. Khayyam also came under attack from the orthodox Muslims who felt that Khayyam's questioning mind did not conform to the faith.
Pagpopondo upang patakbuhin ang obserbatoryo ceased at Khayyam's magbago ng kalendaryo ay ilagay sa hold. Khayyam din ang dumating sa ilalim ng atake mula sa kinikilala muslims na nadama na Khayyam's pagtatanong isip ay hindi tumalima sa pananampalataya.