In the story of Yuri and Makarov, an important event might be their initial meeting which could set the stage for their relationship. As Makarov starts to carry out his heinous plans, Yuri's growing discomfort and moral dilemma is a significant part. And of course, the climax where Yuri tries to stop Makarov from causing more harm is a key event that shapes the whole story.
One key event could be when Yuri first realizes Makarov's true intentions. Another is when Yuri decides to take action against Makarov. And finally, the moment of their ultimate confrontation.
I'm not sure which specific 'Yuri and Makarov' you are referring to. There could be many characters with these names in different stories. If they are from a game like Call of Duty, Makarov is a very cruel and violent antagonist. Yuri was once his comrade but later turned against him due to Makarov's extreme actions. Yuri finally sacrificed himself to stop Makarov.
The key event was his flight into space on April 12, 1961. Also, his birth on March 9, 1934 was important as it was the start of his life journey. And his death in 1968 in a plane crash was a tragic end to his life.
The key events were the hijacking of the four planes, the two planes crashing into the World Trade Center towers, the plane hitting the Pentagon, and the fourth plane crashing in Pennsylvania.
One key event was Moses' birth when his people were slaves. His mother's clever plan to save him by putting him in the Nile was important. His life in the Egyptian court was a strange mix as he was of Hebrew origin. When he killed the Egyptian, it led to his exile in Midian. God's call to him in the burning bush was a turning point. The plagues that came upon Egypt were a big part of the story as they led to the Hebrews' freedom. And during their long journey in the wilderness, the receiving of the Ten Commandments on Mount Sinai was a defining moment for the Hebrews' faith and way of life.
One key event is the Battle of Stirling Bridge. Wallace and his men cleverly used the terrain to defeat the larger English army. Another is his capture. He was betrayed and handed over to the English. His execution was also a crucial event. It made him a martyr and inspired the Scots to keep fighting for independence.
The key events include the murder of his family which starts his journey. Then his training as an Assassin in Monteriggioni. His encounters with Cesare Borgia in Rome are also crucial.
One key event was the numerous escape attempts. Many prisoners tried to break out through tunnels. Another was the clever disguises used by some prisoners to try and blend in with the guards. Also, the discovery of some prisoners' secret workshops where they made tools for their escapes.
One key event is the murders committed by William Afton in Freddy Fazbear's Pizza, which led to the animatronics being haunted. Another is the constant struggle of the night guards to survive the nights against the possessed animatronics.
One key event is Nehemiah getting permission from the king. Another is his arrival in Jerusalem and assessment of the wall damage. Also, the organization of the people for the rebuilding work is important.
One key event is Guddu and Bablu's return. Another is the continuous power struggle within the Tripathi family. Also, the battles between the different gangs for control over illegal trades.