When it really started by jain community

The provided sources, including "Origin and Development of Jainism" by Sagarmal Jain and other Jain texts like "Jambudwip Pragnapati Namak Mupangam" and "Kalpasutra Moolpath," do not specify a precise date or period when the Jain community officially began. Jainism traditionally traces its spiritual lineage through a succession of 24 Tirthankaras, with the 24th Tirthankara, Lord Mahavira, historically dated to around the 6th century BCE. However, the community's formal organization and recognition likely evolved over time following these teachings.

The origins of Jainism are ancient and rooted in the Indian subcontinent, with its philosophical and ethical foundations laid well before the historical period of Mahavira. The texts referenced focus more on the doctrinal development and spiritual history rather than a specific founding date of the community itself. Therefore, based on the provided context, it is clear that the exact starting point of the Jain community is not detailed.