How did Jainism emerge in the Ganges basin of eastern India?

Jainism emerged in the Ganges basin of eastern India between the 7th and 5th centuries BCE, a period characterized by significant intellectual, social, and religious ferment.12

During this era, members of the Kshatriya (warrior) caste increasingly challenged the cultural and religious dominance of the Brahmans, whose authority was rooted in their claim to innate purity and their performance of traditional Vedic rituals and animal sacrifices. As the doctrine of samsara—the cycle of rebirth—gained popularity, the large-scale killing of animals in these rituals became increasingly objectionable to many people.12

In response, new religious movements, including Jainism and Buddhism, arose to promote asceticism and the abandonment of ritualistic social action. These traditions emphasized spiritual illumination and the attainment of freedom from rebirth through individual effort. Mahavira, a contemporary of the Buddha, became a central figure in this movement by systematizing earlier doctrines, such as those of the 23rd Tirthankara, Parshvanatha, and establishing the rules for the Jain monastic community.21