Postby James Brazas » Tue Jan 08, 2013 10:51 am
Yes and no.
"Yes" in the sense that swords of various types were the weapons that the surviving manuals focus the most on and they were the weapons most commonly carried on a daily basis by the knights, nobles, etc.
"No" in the sense that swords were always the most expensive weapons available, so many people would be unable to afford a sword at all. This is especially true the earlier in history you go.
For those who could not afford swords, they often used the quarterstaff, the grosse messer (giant knife), the dagger, etc.
As far as the battlefield goes, it depends. Commoner infantrymen would usually be pikemen, archers, or gunners during the late middle ages and Renaissance. Any of those three might have a sword as a back-up weapon if they could afford one. The pikeman would use it as backup if the enemy got too close for his pike to be effective. The archer and gunner would likewise use their sword if the enemy got too close for their ranged weapons to be effective.
Knights, Men at Arms, other Cavalry, etc. would usually have a lance and sword for use on horseback and a pollaxe (or spear) and sword for use on foot.
Generally, you fight the enemy at whatever distance they are from you. So if they are far away, you start off with your longest reaching weapon (such as a spear). Spears have a minimum effective range, so when they get closer, you use your sword.
Different weapons have different advantages and disadvantages. Spears and other polearms have the advantage of reach. Swords have versatility (and arguably speed).
As far as that video of spear vs. sword-and-buckler, that is just an excellent example of a spearman using his reach advantage effectively. If the sword-and-bucklerman had been able to close the distance effectively, the sword-and-bucklerman would have easily won. It's all about distance. Spear has a huge advantage at a far distance, sword-and-buckler has a huge advantage at close distance. The issue is that for the shorter weapon to win, it must first fight past the longer weapon's point.