The sixth century B.C. is considered a wonderful century in history. Great thinkers like Buddha, Mahavira, Heraclitus, Zoroaster, Confucius and Lao Tse lived and preached their ideas in this century. In India, the republican institutions were strong in the 6th century B.C. This enabled rise of heterodox sects against the orthodox religion dominated by rites and rituals. Among them the most successful were Jainism and Buddhism whose impact on the Indian society was remarkable.
Causes for the Rise of Jainism and Buddhism
The primary cause for the rise of Jainism and Buddhism was the religious unrest in India in the 6th century B.C. The complex rituals and sacrifices advocated in the Later Vedic period were not acceptable to the common people. The sacrificial ceremonies were also found to be too expensive. The superstitious beliefs and mantras confused the people. The teachings of Upanishads, an alternative to the system of sacrifices, were highly philosophical in nature and therefore not easily understood by all. Therefore, what was needed in the larger interests of the people was a simple, short and intelligible way to salvation for all people. Such religious teaching should also be in a language known to them. This need was fulfilled by the teachings of Buddha and Mahavira.
Other than the religious factor, social and economic factors also contributed to the rise of these two religions. The rigid caste system prevalent in India generated tensions in the society. Higher classes enjoyed certain privileges which were denied to the lower classes. Also, the Kshatriyas had resented the domination of the priestly class. It should also to be noted that both Buddha and Mahavira belonged to Kshatriya origin. The growth of trade led to the improvement in the economic conditions of the Vaisyas. As a result, they wanted to enhance their social status but the orthodox Varna system did not allow this. Therefore, they began to extend support to Buddhism and Jainism. It was this merchant class that extended the chief support to these new religions.
Jainism
Life of Vardhamana Mahavira (539- 467 B.C.)
Vardhamana Mahavira was the 24th Tirthankara of the Jain tradition. He was born at Kundagrama near Vaisali to Kshatriya parents Siddhartha and Trisala. He married Yasoda and gave birth to a daughter. At the age of thirty he became an ascetic and wandered for twelve years. In the 13th year of his penance, he attained the highest spiritual knowledge called Kevala Gnana. Thereafter, he was called Mahavira and Jina. His followers were called Jains and his religion Jainism. He preached his doctrines for 30 years and died at the age of 72 at Pava near Rajagriha.
Teachings of Mahavira
The three principles of Jainism, also known as Triratnas (three gems), are:
– right faith
– right knowledge
– right conduct.
Right faith is the belief in the teachings and wisdom of Mahavira. Right Knowledge is the acceptance of the theory that there is no God and that the world has been existing without a creator and that all objects possess a soul. Right conduct refers to the observance of the five great vows:
– not to injure life
– not to lie
– not to steal
– not to acquire property
– not to lead immoral life.
Both the clergy and laymen had to strictly
follow the doctrine of ahimsa. Mahavira regarded all objects, both animate and inanimate, have souls and various degrees of consciousness. They possess life and feel pain when they are injured.
Mahavira rejected the authority of the Vedas and objected to the Vedic rituals. He advocated a very holy and ethical code of life. Even the practice of agriculture was considered sinful as it causes injury to the earth, worms and animals. Similarly the doctrine of asceticism and renunciation was also carried to extreme lengths by the practice of starvation, nudity and other forms of self-torture.
Spread of Jainism
Mahavira organised the Sangha to spread his teachings. He admitted both men and women in the Sangha, which consisted of both monks and lay followers. The rapid spread of Jainism was due to the dedicated work of the members of the Sangha. It spreadrapidly in Western India and Karnataka. Chandragupta Maurya, 
Kharavela of Kalinga and the royal dynasties of south India such as the Gangas, the Kadambas, the Chalukyas and the Rashtrakutas patronized Jainism. By the end of the fourth century B.C., there was a serious famine in the Ganges valley. Many Jain monks led by Bhadrabagu and Chandragupta Maurya came to Sravana Belgola in Karnataka.
Those who stayed back in north India were led by a monk named Sthulabahu who changed the code of conduct for the monks. This led to the division of Jainism into two sects Svetambaras (whiteclad) and Digambaras (Sky-clad or Naked).
The first Jain Council was convened at Pataliputra by Sthulabahu, the leader of the Digambaras, in the beginning of the 3rd century B.C. The second Jain Council was held at Valabhi in 5th century A.D. The final compilation of Jain literature called Twelve Angas was completed in this council.