Peter Parker (June 18, 1804 – January 10, 1888) was an American physician and a missionary who introduced Western medical techniques into Qing dynasty China, at the city of Canton. It was said that Parker "opened China to the gospel at the point of a lancet." Early life Parker was born in Framingham, Massachusetts, in 1804 to an orthodox Congregational family. His parents were farmers. Parker received a B.A. degree from Yale University in 1831, and his M.D. degree from the Yale Medical School, then called Medical Institution of Yale College, in 1834. In January 1834, he completed his theological studies at Yale and was ordained as a Presbyterian minister. China In February 1834, Parker (phoneticized in Cantonese: 伯駕) traveled to Canton, where he had the distinction of being the first full-time Protestant medical missionary to China. In 1835, he opened in that city the Ophthalmic Hospital, which later became the Guangzhou Boji Hospital (the Canton Hospital). Parker specialized in diseases of the eye, including cataracts, and also resected tumors. Parker also introduced Western anesthesia in the form of sulphuric ether. Although the hospital was intended particularly for the treatment of eye diseases, it was soon found impracticable to exclude patients with other maladies. Over 2,000 patients were admitted the first year. Parker often preached to the patients, and trained several Chinese students in the arts of medicine and surgery, some of whom attained considerable skill. Merchant David Olyphant of Olyphant & Co. allowed Parker to use one of his warehouses as a hospital "so that patients could come and go without annoying foreigners by passing through their hongs, or excite the observations of natives by being seen to resort to a foreigner's house, rendered it most suitable for the purpose." In 1840, on the occurrence of hostilities between England and China, the hospital was closed, and Parker returned to the United States. He met and married Harriet Colby Webster during this time period. Returning to China with his new wife in 1842, he reopened the hospital, and it was thronged as before. He served as president of the Medical Missionary Society of China after his mentor Thomas Richardson Colledge. Dr. John Glasgow Kerr followed Parker in running the Medical Missionary Society Hospital. In 1844, Parker worked as Caleb Cushing's main interpreter during the negotiations of the Treaty of Wanghia with the Qing Empire. In 1845 he became a secretary