Births on March 6

Joseph von Fraunhofer

Born on March 6, 1787

Joseph von Fraunhofer, German physicist and astronomer (d. 1826)

Joseph Ritter von Fraunhofer (; German: [ˈfraʊnˌhoːfɐ]; 6 March 1787 – 7 June 1826) was a German physicist and optical lens manufacturer. He made optical glass and achromatic telescope objective lenses, invented the spectroscope, and developed diffraction grating. In 1814, he discovered and studied the dark absorption lines in the spectrum of the sun now known as Fraunhofer lines.The German research organization Fraunhofer Society is named after him and is Europe's biggest Society for the advancement of applied research.

References

Joseph von Fraunhofer

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Events on 1787

13 May

Arthur Phillip
Captain Arthur Phillip leaves Portsmouth, England, with eleven ships full of convicts (the "First Fleet") to establish a penal colony in Australia.
14 May

Constitutional Convention (United States)
In Philadelphia, delegates convene a Constitutional Convention to write a new Constitution for the United States; George Washington presides.
20 Jun

Federal Convention
Oliver Ellsworth moves at the Federal Convention to call the government the 'United States'.
6 Aug

Constitutional Convention (United States)
Sixty proof sheets of the Constitution of the United States are delivered to the Constitutional Convention in Philadelphia, Pennsylvania.
12 Dec

United States Constitution
Pennsylvania becomes the second state to ratify the United States Constitution, five days after Delaware became the first.

Births on March 6

Joseph von Fraunhofer

Born on March 6, 1787

References

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Events on 1787

Arthur Phillip

Constitutional Convention (United States)

Federal Convention

Constitutional Convention (United States)

United States Constitution