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Protestant Christianity (Chinese: 基督敎新敎; pinyin: Jīdūjiào xīnjiào; lit. 'New teachings of Christianity', in comparison to earlier Roman Catholicism) entered China in the early 19th century, taking root in a significant way during the Qing dynasty. Some historians consider the Taiping Rebellion to have been influenced by Protestant teachings. Since the mid-20th century, there has been an increase in the number of Christian practitioners in China. According to a survey published in 2010 there are approximately 40 million Protestants in China. As of 2019, Fenggang Yang, a sociologist of religion at Purdue University, estimated that there are around 100 million Protestant Christians in China. Other estimates place the number of Protestant Christians at around 40-60 million