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People: Naser al-Din Shah Qajar
Topic: Frankish-Avarian War of 791-96
Location: Brno Brnensky Kraj Czech Republic

Hermann von Helmholtz publishes the first of …

Years: 1856 - 1856

Hermann von Helmholtz publishes the first of his seminal Handbook of Physiological Optics trilogy in 1856, providing empirical theories on spatial vision, color vision, and motion perception.