Omar Khayyam and Hassan Sabbah

Although by critiques' standards, it may be a bit "cheesy" but it has some good political and ideological points. Omar Khayyam and Hassn Sabba in real life in 11th century were childhood friends in Persia. When they grew up, Khayyam went after science and literature and became, a poet, philosopher, mathematician, and made the first solar calendar for human kind. And Sabbah went after politics and established the school of "assassination" and terrorism. The work of both still exist strongly and as Khayyam puts it "it will exist as long as his calendar exists."