Author: Konstantin Dmitrievich Ushinskiǐ
Alternate names: Konstantin Dmitrievich Ushinskiǐ; K. D. Ushinskiĭ; Konstantin Dmitrievich Ushinskiĭ; K. D. Ushinskiĭ; K. D. Ushinskii; Ushinski K. D.
Born: 1824
Died: 1870