Dumas famously said, "What is history? It is the nail I use to hang my novel. " Three musketeers is an excellent novel hanging on the nail of French history from 1625 to 1628. At that time, France, which was dominated by Catholicism, began the religious reform. As a result, Protestantism became increasingly powerful and occupied many cities, forming a situation in which there was a country within a country. In order to unify the French and consolidate the political power, in 1625, the cardinal personally commanded the army to capture the last fortress of Protestantism, La Roscher, and deprived Protestantism of its political privileges. This period of history was a major political event in France at that time. This book takes it as the background, but it does not stick to history. It sublimates the events and characters that appeared in history and evolves into a magnificent and exciting literary masterpiece. Dumas wrote three musketeers in 1844, and it was serialized in the Paris newspaper Century from March to July of that year. Based on the French court in the 13th period of Louis, the novel describes the story of the young hero D 'Artagnan who left his hometown and came to Paris to realize his life ideal in the national musket team. D 'Artagnan, Ados, Bordeaux and Aramis three musketeers formed a life-and-death relationship, and the four men were involved in a thrilling contest between King Louis XIII, Prime Minister Richelieu and his henchmen. This novel is one of the few works that eulogize the friendship between men in the history of world literature. Ados, Bordeaux, Aramis and D 'Artagnan are loyal friends. They are congenial and cooperative, and they can give their lives for each other. "All for one, all for one" is their motto. They are symbols of friendship, youth and courage. In the sword, Dumas' musketeer legend interprets the eternal themes of good and evil, loyalty and betrayal.