What are the three major events in The Three Musketeers?

In "The Three Musketeers," three major events include D'Artagnan's arrival in Paris, where he meets and befriends Athos, Porthos, and Aramis, forming the titular group. Another significant event is the conflict with Cardinal Richelieu's agents, particularly involving the scheme to retrieve the diamond studs from Queen Anne. Lastly, the climax involves the group's daring rescue of D'Artagnan and the musketeers' loyalty to each other, culminating in a confrontation with the cardinal's forces.