Peter Griess 1829–1888 Source: Wikimedia Commons About Peter Griess German chemist who discovered the diazotization reaction (1829–1888) People from the Same Era George Frederick Blackwood 1838–1880 military officer Moradabad Johann Philipp Hoff 1833–1908 photographer, sculptor Bornheim Fèlix Macià i Bonaplata 1831–1891 businessperson, politician Barcelona Lafayette Rowland 1837–1903 farmer, politician Albrecht Ritschl 1822–1889 philosopher, theologian, university teacher Berlin Septimus Rameau 1826–1876 politician Les Cayes