You should pose this question on the Old Houses forum.

I believe you need to figure out what kind of finish is on the floors. It could be varnish, it could be wax, it could be that someone came along and applied polyurethane. There are sites on the internet that will tell you how to figure out what the finish is.

Here is a link that might be useful: Floor finishes

Hardwood floors are one of the easiest flooring types to keep clean. Unlike carpeting, hardwood floors require minimum maintenance and can last for many years. Clean hardwood floors that run throughout a house can make the house look both beautiful and spacious. Maintenance methods to clean hardwood floors should not differ among types, but some finishes may require extra care when removing stains.The quickest and most effective way to clean hardwood floors is with a damp mop. Before mopping, make sure that you have removed all surface dust from the floor. This can be done with a soft broom or lightweight vacuum cleaner. Then, simply mop, rinse and repeat. It is important to remove grit and dirt from hardwood floors. Dirt and grit are the biggest enemies when it comes to scratching or scouring the floor finish.

I also have a wooden floor at home. I looked for advice on the Internet about how I should not care for him. You can watch the video on YouTube!