Deaths on January 19

Jean-Pierre Christin

Died on January 19, 1755

Jean-Pierre Christin, French physicist, mathematician, and astronomer (b. 1683)

Jean-Pierre Christin (31 May 1683 – 19 January 1755) was a French physicist, mathematician, astronomer and musician. His proposal in 1743 to reverse the Celsius thermometer scale (from water boiling at 0 degrees and ice melting at 100 degrees, to where zero represented the freezing point of water and 100 represented the boiling point of water) was widely accepted and is still in use today.Christin was born in Lyon. He was a founding member of the Académie des sciences, belles-lettres et arts de Lyon and served as its Permanent Secretary from 1713 until 1755. His thermometer was known in France before the Revolution as the thermometer of Lyon. One of these thermometers was kept at the Science Museum in London.

References

Jean-Pierre Christin

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Events on 1755

15 Apr

A Dictionary of the English Language
Samuel Johnson's A Dictionary of the English Language is published in London.
9 Jul

Battle of the Monongahela
The Braddock Expedition is soundly defeated by a smaller French and Native American force in its attempt to capture Fort Duquesne in what is now downtown Pittsburgh.
25 Jul

Expulsion of the Acadians
British governor Charles Lawrence and the Nova Scotia Council order the deportation of the Acadians.
10 Aug

Expulsion of the Acadians
Under the orders of Charles Lawrence, the British Army begins to forcibly deport the Acadians from Nova Scotia to the Thirteen Colonies.
1 Nov

1755 Lisbon earthquake
In Portugal, Lisbon is totally devastated by a massive earthquake and tsunami, killing between 60,000 and 90,000 people.

Deaths on January 19

Jean-Pierre Christin

Died on January 19, 1755

References

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Events on 1755

A Dictionary of the English Language

Battle of the Monongahela

Expulsion of the Acadians

Expulsion of the Acadians

1755 Lisbon earthquake