What wasWhich technological advance did not become popular in the 1920s?

Indoor Plumbing

Explanation:

During the 1920s, American's society and culture changed in developing into new by introducing roaring twenty, with new gadgets which helped women getting to involve in modernity.  Automobiles, the radio, television, the refrigerator, and electric razor were some of the inventions that became popular in the 1920s. Many people used chamber pots to relieve themselves, which would be put under the bed or in a closet. In the 1920s, city people had indoor bathrooms and running water. Indoor plumbing arrives in rural areas during the 1930s. Farm families living in the country were accustomed to older methods of drawing water from wells and hand pumps as they did not have a water supply system.

b) he seized power from the directory and appointed himself emperor

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