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Jan 1, 1400
The dark ages started.
All the country in the world expeat europe was deveolping that was the europin dark ages. -
Sep 19, 1500
hydrogen discoverd by H,cavendish
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Phosphours was discoverd
In 1669 Phosphours was found by H.brand -
cobalt was discoverd in 1732 the person who discoved it was G.brandt
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platnium was discoverd in by A. de ulloa
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oxgen was discoverd by W.Scheele
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sodium discoverd by H.davey
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Boron was discoverd by L.gay -lussac and lj.thenard
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flourine was discoverd by A-m.AMPERE
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Aluminium by h.c.orsted
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helium was discoved by P.jannssen and N.lockery
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lithium was discoverd by 1871
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neon was discoverd by w.Ramsay W. travers
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The cold war between America and russia.
The america and russians were fight to who will reach the moon first and creat more human made elements.