Watch Tobuscus's vid enough and you will see how. That's my best answer
i am going to assume that you attempted a mod, but failed miserably. the easiest fix is to delete you bin folder. when you restart Minecraft, it will recreate it, and you should be good to go.
The verb of recreation is recreate. As in "to recreate something". Or as in 'to recreate during the holidays".
Recreate for Growth was created in 2002-03.
Recreate Greece was created on 2012-03-11.
Use your creativity and imagination to recreate styles that you have already seen.
recreate
you cant
the study of the spores and pollen of plants to recreate an environment
Not as of yet.
You can recreate your first date by your memory. Your brain takes pictures of everything. Then you can just set up your scenery the way it was back then too.
recreate or reinvent
No.