If that Martian looked at battlefields, they would find that people had only muskets at the time of the Civil War and that they had repeating rifles at the time of the Spanish-American War, and then they had machine guns by the time of World War I.
Hvis den marsboer havde set på slagmarken, ville de se at mennesker kun havde musketer under borgerkrigen og de havde repeterende rifler under den spansk-amerikanske krig, og så havde de maskingeværer i tiden under Første Verdenskrig.