The pop-up toaster
1919Notable
Charles Strite files a patent for an automatic toaster that ejects bread when done. The Toastmaster home model of 1926 made toast a daily habit and boosted demand for uniform sliced bread.
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Longest chain: The Big Bang → First stars ignite → Supernovae seed heavy elements → The Sun forms → Earth forms → First oceans → First life → Photosynthesis evolves → Great Oxidation Event → Complex cells (eukaryotes) → Multicellular life → First animals → Cambrian Explosion → First vertebrates → Jawed fish → Fish walk onto land → The amniotic egg → The Great Dying → Dinosaurs appear → Asteroid ends the dinosaurs → Early primates → Apes split from monkeys → Human line splits from chimpanzees → Walking upright → First stone tools → Genus Homo appears → Homo erectus → Control of fire → First fired clay figures → First pottery → Copper smelting → Bronze Age begins → Shang dynasty → Zhou dynasty and the Mandate of Heaven → Spring and Autumn period → Warring States period → Zhengguo Canal → Qin unifies China → Han dynasty → Magnetic compass for navigation → Gilbert's On the Magnet → Leyden jar → Franklin's kite experiment → Electric battery → Electromagnetism → Electromagnetic induction → Practical light bulb → First central power station → The pop-up toaster
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