TY JOUR TI Formation and development of the doctrine of legal facts (XIX — early XX century) KW legal fact KW circumstance of reality KW the actual composition KW theory of legal facts KW legal norm KW action KW event JO Legal Science and Practice: Journal of Nizhny Novgorod Academy of the Ministry of Internal Affairs of Russia AU Tsukanova, E.Y. PY 2020 IS 2020 PB Nizhny Novgorod Academy of the Ministry of the Interior of Russia