09/11/2025
The earliest soap-like materials go back to ancient Babylon (c. 2800 BC), where clay tablets talk about mixing fats (animal or plant), ash, and water to make a cleansing substance.
The Egyptians, by about 1500 BC, also had soap-like substances and used them medicinally.
But what we recognize today as bar soap (a hard, shaped soap solid used for personal hygiene) seems to appear later:
• In the Middle East during the Islamic Golden Age solid toilet soaps (pleasantly scented, usable on skin) were being produced.
• In Europe, soap-making, especially in Mediterranean regions, began to adopt vegetable oils (olive, etc.), improving the quality. Marseille (France) and Castile (Spain) became famous centers for solid soaps.
Mass / commercial manufacture of bar soap as a common household item starts around the late 18th to early 19th centuries.