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He invented the octant which was a precursor to sextant.
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∙ 10y ago
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What is John Hadley's birthday?
John Hadley was born on April 16, 1682.
When was John Hadley born?
John Hadley was born on April 16, 1682.
When did John Hadley die?
John Hadley died on February 14, 1744 at the age of 61.
How old was John Hadley at death?
John Hadley died on February 14, 1744 at the age of 61.
What has the author Michael John Hadley written?
Michael John Hadley has written: 'The causative construction in Englsh'
What is the name of James hadley chase only son?
John Hadley Chase.
What has the author John Hadley written?
John Hadley has written: 'Descripto astrolabii navi a Johanne Hadley inventi' -- subject(s): Navigation, Quadrants (Astronomical instruments), Nautical instruments
How old is John Hadley?
John Hadley was born on April 16, 1682 and died on February 14, 1744. John Hadley would have been 61 years old at the time of death or 333 years old today.
Who invented the sextant?
im not 2 sure it is john bird or jhon hadley
Where was john Hadley born at?
Bloomsbury, London
What has the author John Vestal Hadley written?
John Vestal Hadley has written: 'History of Hendricks County, Indiana, her people, industries and institutions' -- subject(s): Biography, History
What mathematician died on valentine's day of 1744?
John Hadley
