In which region did F. A. Stahl serve?

F. A. Stahl is recognized for his significant contributions in the context of South America, particularly related to the establishment and development of the Seventh-day Adventist Church in that region. His pioneering work and efforts in evangelism and church organization were instrumental in the growth of the denomination in South America during the early 20th century. The impact of his ministry helped lay the groundwork for future Adventist activities and growth in the continent, making it a key area of focus during his service.