Bimbisara vs Licinius

Bimbisara married Chellana, daughter of the Licchavi chief Chetaka of Vaishali. This marriage alliance strengthened Magadha's ties with the powerful Licchavi republic and produced his son Ajatashatru.

Bimbisara annexed the kingdom of Anga (modern Bihar) to the Magadha empire. This conquest gave Magadha control over the Ganges river trade route and access to the sea, strengthening its economic and military power.

Bimbisara met Gautama Buddha and became a lay follower, donating the Veluvana Bamboo Grove monastery near Rajagriha. This patronage helped establish Buddhism in Magadha and provided the Buddha with a permanent residence during the rainy season.

Bimbisara was imprisoned by his son Ajatashatru, who seized the throne. According to Buddhist sources, Bimbisara died in captivity, possibly by starvation or suicide. This event marked a violent succession in Magadha.

Licinius met Constantine in Milan and agreed to a policy of religious toleration for Christians. The agreement, known as the Edict of Milan, granted freedom of worship throughout the Roman Empire.

Licinius was defeated by Constantine at the Battle of Cibalae in Pannonia. The loss forced Licinius to cede most of the Balkan provinces to Constantine, significantly weakening his position as co-emperor.

Constantine decisively defeated Licinius at the Battle of Chrysopolis near Chalcedon. Licinius surrendered and was initially spared, but was later executed on charges of plotting rebellion, ending the Tetrarchy.