title: Sergey Prokudin-Gorsky
context: Sergey Mikhaylovich Prokudin-Gorsky (Russian: Серге́й Миха́йлович Проку́дин-Го́рский, listen; August 30[O.S. August 18]1863– September27, 1944) was a Russian chemist and photographer. He is best known for his pioneering work in colour photography and his effort to document early 20th-century Russia.[1]
question: When was Sergey Mikhaylovich Prokudin-Gorsky born?
answers: August 18]186