An online course taught by Harvard professor Laura Nasrallah, Early Christianity: The Letters of Paul, has drawn 22,000 students from 180 countries. The day the course launched was “like drinking from a fire hose,” Nasrallah said. The term “apostle Paul” had more hits than “Beyonce.” The website slowed down and crashed. Nasrallah said that the online discussion groups have been respectful and intelligent. The course is part of edX, founded by Harvard and MIT, which offers university-level courses free to anyone in the world with Internet access (Huffington Post, January 21).