I found this information written in a board in the palace with the title: A warriors companion: The sword
At different times and in different regions various forms of arms were crafted to cater a variety of circumstances. There was a natural competition of work between arms and armor, one fulfilling the needs of effective combat, the other that of effective defense and safety. The result was a diverse family of single and double hand swords for cutting, thrusting and slashing. These might be straight or curved, slender or wide, tapered or un-tapered, and single or double edged.
It must first be appreciated that the sword is unlike any other object. There is nothing else to which it can really be compared. It is fighting tool, but it is not simply a giant knife or a huge razor blade nor is it just a heavy hunk of long flat metal with a handle. A sword is a unique instrument with its own functional properties dependent upon its design.
As a tool the sword was the premier personal weapon of the professional warrior and unlike other weapons, such as bows, spears, axes, daggers, etc. which were also used in hunting and could be made by any craftsman, a sword was made by a skilled specialist known as a sikiligar, a sword smith. He would actually “smith” a blade. Through his talent and experience he worked by hand to carefully shape and then temper iron in to finely crafted steel.