Question

Information about the history of spherical mirrors

Answer 1

Ptolemy conducted a number of experiments with curved polished iron mirrors, and discussed plane, convex spherical, and concave spherical mirrors in his Optics. Parabolic mirrors were also described by the physicist Ibn Sahl in the 10th century, and Ibn al- Haytham discussed concave and convex mirrors in both cylindrical and spherical geometries, carried out a number of experiments with mirrors, and solved the problem of finding the point on a convex mirror at which a ray coming from one point is reflected to another point. 

Answer 2

The history for spherical mirror goes to archimedes who first found its usage 
he used spherical mirror to destroy enemy ships by burning them by focusing sun rays on the ships by the mirrors