Remove all the furniture from the room. Wipe down the wood with a damp cloth or mop. Let the floor completely dry.
Gently tap the wood with a hammer or chain. Do not seriously damage the wood. You should see just a bit of wear in the wood as you work but no major gouging. Stress the wood where it would normally see more action, such as high-traffic corridors.
Sand the entire floor using a fine sandpaper. This can be done by hand if the room is small, but renting a professional sander makes the job easier. As you work, you can see if you distressed the wood to your liking or if you want to do it more.
Add 12 cups lime and 4 cups salt to 2 gallons of water and thoroughly stir it. Let the mixture sit overnight, then apply it to the floor with a wide bristle brush and heavy hand. It will go on more like a glaze than thick paint. Let it dry overnight before walking on it.