Nikolay Danilevsky
Nikolay Yakovlevich Danilevsky (Russian: Никола́й Я́ковлевич Даниле́вский; 28 November 1822 – 7 November 1885) was a Russian naturalist, economist, ethnologist, philosopher, historian, and ideologue of the pan-Slavism and Slavophile movement who expounded a view of world history as circular.