OK, just to play devil's advocate (I don't agree either, but why not?) we never see HOW Hyrule gets the Master Sword, we just see it after it has been placed. Every other variation, like the ALttP claim that they were made by humans, could easily be because of the fact that they take place several hundred years later and the information was lost.

Just some thoughts.

__________________
In the crazy lands between awakening and sleep, I wait, and I think on everything Zelda.

"Let fear be cast into the hearts of our enemy.
Let them lose all hope and let their heart sink into the unending darkness.
Let them have no will to live.
Let them feel the power of the Sages of Despair!"