Nichiren Buddhism is a branch of Mahayana Buddhism founded in the 13th century by the Japanese monk Nichiren. This school emphasizes the teachings of the Lotus Sutra, advocating that all people can attain enlightenment through the chanting of 'Nam-myoho-renge-kyo.' This practice connects deeply with concepts of social justice and activism, as Nichiren Buddhists often engage in community initiatives and promote peace and equality.