After Ashoka's death, the Mauryan Empire continued to exist for 50 years, but it went into a gradual decline. The last Mauryan emperor was Brhadrata, who was assassinated in 185 BCE by one of his generals, Pusyamitra Sunga.

Although his family did not rule for long after he was gone, Ashoka's principles and his examples lived on through the Vedas. He is now known the world over as one of the best rulers ever to have reigned.

Ashoka's Legacy and how he changed to a peaceful religion

In 265, Ashoka attacked Kalinga. Although it was the homeland of his second wife, Kaurwaki, and the king of Kalinga had sheltered Ashoka before his ascent to the throne, the Mauryan emperor gathered the largest invasion force in Indian history to that point and launched his assault. Kalinga fought back bravely, but in the end it was defeated and all of its cities sacked.

Ashoka had led the invasion in person, and he went out into the capital city of the Kalingas the morning after his victory to survey the damage. The ruined houses and bloodied corpses sickened the emperor, and he underwent a religious epiphany. Although he had considered himself more or less Buddhist prior to that day, the carnage at Kalinga led Ashoka to devote himself to Buddhism. He vowed to practice ahimsa from that day forward.

This is talking about if Ashoka was a good leader or a terrible leader

http://www.culturalindia.net/indian-history/ancient-india/ashoka.html

http://storieswithasoul.wordpress.com/2012/02/13/maurya-empire-emperor-ashoka-the-great/

http://www.mapsofindia.com/history/mauryan-empire.html

http://en.wikipedia.org/wiki/Ashoka

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This explains the battle in Kalinga and it's destructions

What have I done? If this is a victory, what’s a defeat then? Is this a victory or a defeat? Is this justice or injustice? Is it gallantry or a rout? Is it valor to kill innocent children and women? Do I do it to widen the empire and for prosperity or to destroy the other’s kingdom and splendor? One has lost her husband, someone else a father, someone a child, someone an unborn infant…. What’s this debris of the corpses? Are these marks of victory or defeat? Are these vultures, crows, eagles the messengers of death or evil?

The brutality of the conquest led him to adopt Buddhism, and he used his position to propagate the relatively new religion to new heights, as far as ancient Rome and Egypt. He made Buddhism his state religion around 260 BC, and propagated it and preached it within his domain and worldwide from about 250 BC. Emperor Ashoka undoubtedly has to be credited with the first serious attempt to develop a Buddhist policy.

Prominent in this cause were his son Venerable Mahindra and daughter Sanghamitra (whose name means “friend of the Sangha”), who established Buddhism in Ceylon (now Sri Lanka). He built thousands of Stupas and Viharas for Buddhist followers. The Stupas of Sanchi are world famous and the stupa named Sanchi Stupa was built by Emperor Ashoka. During the remaining portion of Ashoka’s reign, he pursued an official policy of nonviolence (ahimsa). Even the unnecessary slaughter or mutilation of animals was immediately abolished. Everyone became protected by the king’s law against sport hunting and branding. Limited hunting was permitted for consumption reasons but Ashoka also promoted the concept of vegetarianism. Ashoka also showed mercy to those imprisoned, allowing them leave for the outside a day of the year. He attempted to raise the professional ambition of the common man by building universities for study, and water transit and irrigation systems for trade and agriculture. He treated his subjects as equals regardless of their religion, politics and caste. The kingdoms surrounding his, so easily overthrown, were instead made to be well-respected allies.

He is acclaimed for constructing hospitals for animals and renovating major roads throughout India. After this transformation, Ashoka came to be known as Dhammashoka (Sanskrit), meaning Ashoka, the follower of Dharma. Ashoka defined the main principles of dharma (dhamma) as nonviolence, tolerance of all sects and opinions, obedience to parents, respect for the Brahmans and other religious teachers and priests, liberality towards friends, humane treatment of servants, and generosity towards all. These principles suggest a general ethic of behaviour to which no religious or social group could object.

Some critics say that Ashoka was afraid of more wars, but among his neighbors, including the Seleucid Empire and the Greco-Bactrian kingdom established by Diodotus I, none could match his strength. He was a contemporary of both Antiochus I Soter and his successor Antiochus II Theos of the Seleucid dynasty as well as Diodotus I and his son Diodotus II of the Greco-Bactrian kingdom. If his inscriptions and edicts are well studied one finds that he was familiar with the Hellenic world but never in awe of it. His edicts, which talk of friendly relations, give the names of both Antiochus of the Seleucid empire and Ptolemy III of Egypt. The fame of the Mauryan empire was widespread from the time that Ashoka’s grandfather Chandragupta Maurya defeated Seleucus Nicator, the founder of the Seleucid Dynasty.

Born in Pataliputra, Patna and Died in Pataliputra, Patna