The main events are the encounter with the fish and the flood. Manu meets the fish which tells him about the upcoming flood. Then he builds a boat to survive the flood.
The King Manu story varies in different mythologies. In Hindu mythology, Manu is considered the first man and the progenitor of humanity. He was saved by a fish which grew to a large size and warned him of a great flood. Manu built a boat and took the fish's advice. After the flood, he repopulated the earth. This story has symbolic significance, representing new beginnings and the cycle of creation and destruction.
Since I don't know the exact 'Suicide King Story', I can't tell the main events. It could be about a king's inner turmoil leading to a suicidal decision.
In the King Neptune story, a significant event is his creation of new sea species. Also, his meetings with other gods to discuss the boundaries between the sea and land are important events.
One main event is the solving of the Sphinx's riddle by the Theban king. Another is the discovery of his true identity which led to his downfall.
One of the main events is that King Nala lost his kingdom after losing a game of dice. He then had to go through a period of exile where he faced many difficulties. Another important part is that his wife Damayanti remained loyal to him throughout his absence. Eventually, he regained his kingdom through his own efforts and with the help of the gods.
There were also events related to external threats. The Theban king had to defend the city from invaders. This might involve forming alliances, building up the military, and making strategic decisions. For instance, during times of war with neighboring city - states, the king's leadership in warfare and diplomacy was crucial to the survival of Thebes.
One main event could be the fight for the throne. When an old king dies or is overthrown, other lions will compete for the position of king. Another event is the hunting. The king often leads or participates in the hunt to provide food for the pride. And sometimes, there is the event of protecting the territory from other lion groups or predators.
Since I don't know the exact Ashura King story, it's hard to list the main events. But generally, it might involve his ascension to the throne as the Ashura King.
Since I don't know the full story of King Kashyapa, but perhaps his ascension to the throne and his first major decision as king could be main events. Also, if there were any significant battles he led or diplomatic meetings he held, those would likely be main events as well.
The main event was the battle at Thermopylae. King Leonidas and his 300 soldiers faced the vast Persian army there. Another event was their initial defense of the narrow pass which gave them an advantage at first. Also, the final stand of the Spartans when they knew they were going to be overrun but still fought bravely is a significant part of the story.