三月事件
During the 31 March Incident in 1909, the observatory was destroyed by the rebels. Next year, however, Professor Fatin (later Fatin Gökmen) was tasked with the reestablishment of the observatory. He chose the present place as the location in of the observatory. Systematic research works began on July 1, 1911. After several name changes, the name "Kandilli Observatory, Astronomy and Geophysics" came into use in 1940. In 1982, the observatory was annexed to Boğaziçi University. Later, the institution was renamed Kandilli Observatory and Earthquake Research Institute (KOERI).