Boll weevil enters the United States
1892Notable
The boll weevil crosses from Mexico into Texas near Brownsville and spreads across the Cotton Belt by the 1920s. Its damage pushes the South to diversify crops and use insecticides.
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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 → Habitual fire and cooking → Homo sapiens appears → Complex language → Natufian villages → Oldest known bread → Agriculture begins → Irrigation → Uruk and the first cities → Cylinder seals → Writing (cuneiform) → Akkadian Empire → Neo-Assyrian Empire → Persian Empire founded → Persian Royal Road → Silk Road opens → Marco Polo's journey → Columbus reaches the Americas → Columbian Exchange → Transatlantic slave trade → Cotton gin → Boll weevil enters the United States
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