Zamfir Constantin Arbore (Romanian pronunciation: [zamˈfir konstanˈtin ˈarbore]; born Zamfir Ralli, Russian: Земфирий Константинович Арборе-Ралли, Zemfiriyi Konstantinovich Arborye-Ralli; also known as Zamfir Arbure, Zamfir Rally, Zemphiri Ralli and Aivaza; November 14, 1848 – April 2 or April 3, 1933) was a Bukovinian-born Romanian political activist originally active in the Russian Empire, also known for his work as an amateur historian, geographer and ethnographer. Arbore debuted in left-wing politics from early in life, gained an intimate knowledge of the Russian revolutionary milieu, and participated in both nihilist and Narodnik conspiracies. Self-exiled to Switzerland, he became a member of the International Workingmen's Association. Arbore was mostly active as an international anar