When did he discovered? Do you mean what? He discovered Yellow Fever was transmitted by mosquitoes. And if you mean when did he discover it, then the answer you are looking for is he led a research team that discovered this in 1900.
J.J.Thomson has discovered the electron in 1897
It is not known where exactly in England sodium was discovered. It was discovered by Sir Humphrey Davy in 1807.
935 is the purity for Argentium silver. Argentium silver is NOT sterling silver. It is a different alloy which has germanium in it which makes it less prone to tarnishing. Sterling is an alloy that has more copper in it. The copper is added to fine silver in order to make it stronger.
cytoplasm/protoplasm was discovered by Robert brown
1848 or 1849
5000BC
It is widely undetermined, the origins of the discovery of silver. It has been used for thousands of years as a currency.
the discovered the Mississippi river and Jacques Marquette they discovered gold and silver.
1864
it is silver white. it is discovered by a German chemist. it was discovered in 1989.
Silver has been known since pre-history.
Silver is an element that occurs in nature. It was discovered, not invented, by ancient man.
Kanye West.
Known since ancient timessilver was discovered in the ancient times....in the bible silver was mentioned.....but I'm not sure if where did they discovered it.....they say it was in Asia minor....
Silver is a metal that has been know from ancient times. We do not know where it was first discovered.
Nevada is the Silver State, so more silver was discovered than gold.