Complex sentence: Since metallurgy in the Pre-Christian Finland was primitive, and iron and steel rare, swords were extremely rare and more status symbols of a chieftain than real weapons of warand väkipuukko was the common infantryman's sidearm, main arms being either spears or bows.
Split into simpler sentences: Since metallurgy in the Pre-Christian Finland was primitive, and steel rare, swords may have been mainly status symbols of a chieftain than real weapons of war. Väkipuukko was the common infantryman's sidearm, main arms being either spears or bows.