Linked from
The 8 pages that link to Malik-Shah I, each with the reason it gives.
Omar KhayyamRelated: Khayyam’s calendar reform was undertaken during Malik-Shah’s reign.
NizamiyyaRelated: His reign saw the Nizamiyya system expand under Nizam al-Mulk’s administration.
Persian calendarRelated: His court commissioned the calendar reform later known as Jalali.
Alp ArslanRelated: Alp Arslan secured Malik-Shah’s succession, extending the dynasty’s rule.
Tughril IRelated: His imperial peak followed the state-building and expansion begun under Tughril.