"Jean-Nicolas-Louis Durand (Paris, 18 September 1760 – Thiais, 31 December 1834) was a French author, teacher and architect. He was an important figure in Neoclassicism, and ...
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his system of design using simple modular elements anticipated modern industrialized building components. Having spent periods working for the architect Étienne-Louis Boullée and the civil engineer Jean-Rodolphe Perronet, he became a Professor of Architecture at the École Polytechnique in 1795." - (en.wikipedia.org 23.05.2021)