This is the year when Jack M. Elkin, an actuary, found an algebraic solution to Alhazen's problem.

This is the year when Friedrich Risner published 'Opticae thesaurus: Alhazeni Arabis libri septem, nuncprimum editi; Eiusdem liber De Crepusculis et nubium ascensionibus', which included the first printed Latin translation of Alhazen's 'Book of Optics'. This publication played a crucial role in disseminating Alhazen's work to European scholars and contributing to the scientific revolution.