The missionaries promoted education, agriculture, and health care. The missionaries created the Lisu written language and new opportunities. David Fish reports that, "J. Russell Morse brought many kinds of fruit such as Washington, Orange, Ruby, King-Orange, and grapefruit. Fruit cultivation spread from Putao to other parts of Myanmar and become an important national asset. He also trained the people the art of carpentry and the construction of buildings. And the Lisu people had also learned the strategy of Church planting from them."