Olmec balls
Latex mixed with morning-glory juices.
天然橡胶 · 三叶橡胶树的顺式-1,4-聚异戊二烯——轮胎喝掉全球大部分胶乳。
天然橡胶 did not arrive as a finished commodity. Mesoamerican use / Goodyear 1839 / Wickham 1876 around Amazonia → Malaysia still explains who makes it and which tests it sits in.
Ten dated points, five eras and three milestones below are the spine — not a complete industrial history.
Latex mixed with morning-glory juices.
European scientific samples from Amazonia.
Sulfur heat made a stable elastomer.
British parallel to Goodyear.
Hevea smuggled to Kew then Ceylon and Malaya — colonial plantation age.
Bicycles then cars.
Failed industrial jungle; Asia kept the trees.
Synthetic styrene-butadiene when Asia was cut off.
NR latex protein allergy became a clinical topic.
Due-diligence rules hit Hevea maps.
Latex mixed with morning-glory juices.
Sulfur heat made a stable elastomer.
Hevea smuggled to Kew then Ceylon and Malaya — colonial plantation age.
Failed industrial jungle; Asia kept the trees.
NR latex protein allergy became a clinical topic.
British parallel to Goodyear.
Failed industrial jungle; Asia kept the trees.
Due-diligence rules hit Hevea maps.
Knowing this timeline is how to read a mill certificate without treating 天然橡胶 as timeless.