Question: What is the name of the Japanese Period drama based on the 18th-century historical event when leaderless samurai avenged the death of their master?
Sentence (from "Akō Rōshi (1979 TV series)"): Akō Rōshi (赤穂浪士 ) is a Japanese television jidaigeki or period drama that was broadcast in 1979.
Relevant evidence: Yes