english: 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.
non_english: Ak by sa Marťan pozrel na bojové polia, zistil by, že ľudia mali muškety v časoch Americkej občianskej vojny, viacranové pušky v časoch Španielsko-americkej vojny, a guľomety v Prvej svetovej vojne.