Births on September 20

James Dewar

Born on September 20, 1842

James Dewar, Scottish-English chemist and physicist (d. 1923)

Sir James Dewar (20 September 1842 – 27 March 1923) was a British chemist and physicist. He is best known for his invention of the vacuum flask, which he used in conjunction with research into the liquefaction of gases. He also studied atomic and molecular spectroscopy, working in these fields for more than 25 years.

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James Dewar

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Events on 1842

13 Jan

1842 retreat from Kabul
Dr. William Brydon, an assistant surgeon in the British East India Company Army during the First Anglo-Afghan War, becomes famous for being the sole survivor of an army of 4,500 men and 12,000 camp followers when he reaches the safety of a garrison in Jalalabad, Afghanistan.
9 Mar

Rancho San Francisco
The first documented discovery of gold in California occurs at Rancho San Francisco, six years before the California Gold Rush.
30 Mar

Crawford Long
Ether anesthesia is used for the first time, in an operation by the American surgeon Dr. Crawford Long.
14 Aug

Seminole Wars
American Indian Wars: Second Seminole War ends, with the Seminoles forced from Florida to Oklahoma.
7 Dec

Ureli Corelli Hill
First concert of the New York Philharmonic, founded by Ureli Corelli Hill.

Births on September 20

James Dewar

Born on September 20, 1842

References

Choose Another Date

Events on 1842

1842 retreat from Kabul

Rancho San Francisco

Crawford Long

Seminole Wars

Ureli Corelli Hill