Final answer:
The Jesuits were effective in spreading Christianity to non-Christian areas through the establishment of missions and schools.
Step-by-step explanation:
The Jesuits were effective in areas where people were not Christians because they set up missions and schools to spread Christianity and convert the local populations. They also used education as a means of gaining influence and support. For example, the Jesuits established schools and universities in different parts of the world, including China, India, and the Americas. These institutions not only provided education but also helped in the propagation of Christian beliefs and values.
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