Revolutionary inventions from the 1920s, including medical breakthroughs like insulin and everyday innovations like Band-Aids, sliced bread, and the polygraph.

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The result is 300 groundbreaking inventions (and 100 special mention inventions )—including an AI detector for teachers, a ...

The early 2000s produced inventions that felt less like practical tools and more like props from a slightly awkward sci-fi movie. You watched familiar analog staples vanish almost overnight, replaced ...