Alessandro Valignano
In August 1582, Ricci arrived at Macau, a Portuguese trading post on the South China Sea. At the time, Christian missionary activity in China was almost completely limited to Macau, where some of the local Chinese people had converted to Christianity. No Christian missionary had attempted seriously to learn the Chinese language until 1579 (three years before Ricci's arrival), when Michele Ruggieri was invited from Portuguese India expressly to study Chinese, by Alessandro Valignano, founder of St. Paul Jesuit College (Macau), and to prepare for the Jesuits' mission from Macau into Mainland China.