Tirthankaras

In Jainism, a tirthankara (Sanskrit tīrthaṅkara) is a saviour and spiritual teacher of the dharma (righteous path). The word tirthankara signifies the founder of a tirtha, which is a fordable passage across the sea of interminable births and deaths, the saṃsāra. According to Jains, a tirthankara is a rare individual who has conquered the saṃsāra, the cycle of death and rebirth, on his own and made a path for others to follow. After understanding the true nature of the Self or soul, the Tīrthaṅkara attains Kevala Jnana (omniscience) and refounds Jainism. Tirthankara provides a bridge for others to follow the new teacher from saṃsāra to moksha (liberation).

According to Jain cosmology, in each half of the cosmic time cycle, exactly twenty-four tirthankaras grace this part of the universe. The first tirthankara was Rishabhanatha, who is credited for formulating and organising humans to live in a society harmoniously. The 24th and last tirthankara of present half-cycle was Mahavira (599-527 BC). History records the existence of Mahavira and his predecessor, Parshvanatha, the twenty-third tirthankara.

A tirthankara organises the sangha, a fourfold order of male and female monastics, srāvakas (male followers) and śrāvikās (female followers).

The tirthankara's teachings form the basis for the Jain canons. The inner knowledge of tirthankara is believed to be perfect and identical in every respect and their teachings do not contradict one another. However, the degree of elaboration varies according to the spiritual advancement and purity of the society during their period of leadership. The higher the spiritual advancement and purity of mind of the society, the lower the elaboration required.

...
Wikipedia