Historical Events Mar 6 Omar ibn Ibrahim al-Chajjam completes Jalali-calendar Mar 16 Iran adopts solar Hijrah calendar Apr 11 Bishop Stanislaus of Krakow is executed by order of Bolesław II of Poland Famous People Born in 1079 Aug 8 Emperor Horikawa of Japan (d. 1107) World Leaders in 1079 Henry IV Famous People Who Died in 1079 May 9 Stanislaus, Polish bishop of Kraków, murdered at 48 1078 History by Year 1080