Soap in the Age Before Common Era

Soap has been known since before the Common Era, with the earliest evidence often cited as originating in Babylon around 2800 BC.

This substance is a cleaning agent made from a mixture of fat or oil with an alkali. In chemistry, soap is a salt of fatty acids and helps remove dirt from skin, clothing, or other objects. In pre-Christian times, its early form wasn't like modern soap; it was more like a simple cleaning agent made from ash, fat, and water. So, if you ask "what is this substance?" the answer is: a fat/oil and alkali-based cleaning agent.

Ancient Egypt also used a mixture of animal/vegetable oils and alkaline salts for cleansing and skin care around 1550 BC. If you mean "soap in the pre-Christian era," the gist is: Babylonia: soap-like substance around 2800 BC. Ancient Egypt: use of a soap-like mixture around 1550 BC. Initially, it was used more for cleaning objects, textiles, and medicinal purposes, rather than primarily for bathing.

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