Useful Modern Inventions from around the world That Are Actually Ancient

Hot Tub

The first hot tub was believed to be used first by the Egyptians for therapeutic purposes as early as 2000 BC.  It was then followed by the Greeks but it was the Romans who perfected this practice when they came up with the famous Roman bath tub, which  was basically a large tub in newer and more expensive homes that people could use not just for therapeutic or medical reasons but also to relax.