To answer your question about specific river valley civilization innovations that relate to textile production, it would help to know the specific pairs of river valley civilizations or innovations you are considering. Generally, textile production in ancient river valley civilizations, such as those in Mesopotamia, the Indus Valley, and ancient Egypt, was influenced by several key innovations:
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Weaving Technologies - The development of looms and weaving techniques allowed for more complex textiles to be produced.
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Cotton and Plant Cultivation - The domestication of plants like cotton or flax, which provided fibers necessary for fabric production.
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Dyeing Techniques - Innovations in dyeing allowed for the creation of vibrant colors in textiles, making them more desirable.
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Spinning Tools - The invention of the spindle and spinning wheel enhanced the ability to produce yarn efficiently.
If you can provide the pairs you are considering, I would be happy to help you identify which one most directly relates to textile production.