They likely would have used carbonates found in rocks or just regular water.
Hard water contains calcium and magnesium salts. Therefore, in hard water, soaps get precipitated as calcium and magnesium soaps which being insoluble stick to the clothes as gummy mass.
Soap is usually made from some type of fat. It sometimes contains lye or glycerin, and is used to wash people, clothes, and surfaces.
Alcohol is not used for clothes washing; soaps and detergents are.
no laundry soap
Most people don't start watching the soaps until they are teenagers. Depending on whether or not your mom watches the soaps, some people may start watching them when they are younger.
A lot of things can cause irritation. For many it can be clothes rubbing against it or even soaps too.
no laundry soap
candles, adobes, tiles, shoes, woolen garments, soap, and clothes.
Soaps or, for tough projects, degreasers.
The nonpolar part of soaps or detergents "dissolve" dirt, fats and oilis; this mixture reach the internal part of so-called micelles, formed by adding soaps to water. The external part of these micelles is from polar part of soaps and detergents and is soluble in water. So thhis assembly is washed.
soaps having a chiral nitrogen are invert soaps
Babies have much more sensitive skin than adults. A strong laundry soap might leave residue on clothes. THis residue could be uncomfortable or dangerous for a baby.