Commemoration of al-Biruni
National occasion Strength of evidence: Strong
Honouring al-Biruni, scientist, astronomer and author of al-Athar al-Baqiya.
Friday September 4, 2026
Gregorian
September 4, 2026
Lunar Hijri
Rabiʻ I 22, 1448
Solar Hijri
Shahrivar 13, 1405
Friday