Answer :
In the Middle ages also known as Medieval ages, Dark ages, and The Ages of Faith, things were different and you could say they were old fashioned and rustic. They used wood and relied on very little resources to build, travel, and work. Today technology does not use as much wood as they did then and is much more efficient. In the Middle ages tech that we have today was unknown. Chemicals and physics were not an option.
During the Middle ages no proper clean items were really in use since everything was pretty much fresh from the world. Comparing the Middle Ages lever to the levers we may use today, we see that our lever is in use of medal and screws while then there was wood and nails. When we compare our items with theirs we clearly see a big change!
I hope this is good! I am so glad I could help!