John Green discusses how Jesus spread Christianity using his public image of being considered the Messiah. He also mentions a couple of historical reasons for Christianity becoming a world religion: The Jews opening up their religion to non-Jews, and Saul of Tarsus (Paul the Apostle) actively spreading Christianity throughout the Mediterranean.
John explains the historical background of Hinduism and summarizes a few sections of The Vedas, the earliest texts of the religion. He describes Dharma and how the Caste System is the foundation for Dharma. He also talks about Samsara, Moksha, and Karma. He references quotes from several religious texts in his explanation.
Christianity, a religion based on the teachings of Jesus Christ, has about two billion followers. Learn about the story of Jesus Christ, where the Christian faith originated, and how it grew to become the largest religion on the planet.
John Green explains the history of Buddhism and how Siddhartha Guatama, or Buddha, set the foundation for the religion. He briefly discusses Siddhartha's life as a prince and how he became Buddha. John then describes the Four Noble Truths, the essence of Buddha's teachings, and gives a glimpse into the life of monks following the religion. He touches upon how the religion spread and was particularly attractive to low-caste Hindus.
John Green explains the history of Judaism in Rome. He mentions that the Jews were tribal people of Judea, a Roman Province, and covers some of the characteristics and beliefs of their religion, such as monotheism and the Covenant. He also details traits about the Jews' God, such as singularity and transcendence.