In which region did Joseph Wolff primarily serve?

Joseph Wolff was primarily active in Asia, where he undertook extensive missionary work. His focus in Asia was particularly notable in areas such as the Middle East and parts of Central Asia, where he sought to share his Christian faith and make connections with diverse cultures and communities. Wolff is known for his adventurous spirit; he traveled through many countries, including Persia and the surrounding regions, engaging with people of various backgrounds.

His work is characterized by a strong emphasis on reaching out to people who had limited exposure to Christianity, representing a significant aspect of missionary outreach during his time. This context is crucial in understanding why his primary service was concentrated in Asia, contrasting with the other regions listed, where he did not have the same level of missionary impact or activity.