* Astronomy

The British first sighted New Caledonia on 4 September 1774
http://en.wikipedia.org/wiki/New_Caledonia#History

Buckminsterfullerene, also known as Bucklerballs, was first prepared in 1985
http://astronomy.activeboard.com/t13079615/fullerene-toxicity/

The Forth Road Bridge opened in 1964
http://astronomy.activeboard.com/t44804118/forth-road-bridge/

The Maiden voyage of the USS Shenandoah (ZR-1) was on 4 September 1923
http://en.wikipedia.org/wiki/USS_Shenandoah_(ZR-1)

The German submarine U-652 fired upon USS Greer on 4 September, 1941
http://en.wikipedia.org/wiki/USS_Greer_(DD-145)#The_Greer_incident.2C_Sept._1941

Max Delbrück (1906 - 1981) was a German-American biophysicist.
http://en.wikipedia.org/wiki/Max_Delbr%C3%BCck

Nicholas Jardine FBA (born 4 September 1943) is a British mathematician
http://en.wikipedia.org/wiki/Nick_Jardine

Ernst Heinrich Bruns (September 4, 1848 - September 23, 1919) was a German mathematician
http://en.wikipedia.org/wiki/Heinrich_Bruns

Martin Wiberg (September 4, 1826 - December 29, 1905) was a computer pioneer 
http://en.wikipedia.org/wiki/Martin_Wiberg

Jacqueline Hewitt (born September 4, 1958) is an American astrophysicist. 
https://en.wikipedia.org/wiki/Jacqueline_Hewitt

Christian of Prachatice (1360/68 - 1439) was a medieval Bohemian astronomer
http://en.wikipedia.org/wiki/Christian_of_Prachatice

Oscar E. Monnig (September 4, 1902 - May 4, 1999) was an American amateur astronomer
http://en.wikipedia.org/wiki/Oscar_Monnig

al-Brn (973 - 1052) was a Muslim astronomer
http://www.britannica.com/EBchecked/topic/66790/al-Biruni

Karl Schroeder (born September 4, 1962) is an award-winning Canadian science fiction author
http://en.wikipedia.org/wiki/Karl_Schroeder

Richard Allen "Dick" York (September 4, 1928 - February 20, 1992) was an American actor
http://en.wikipedia.org/wiki/Dick_York

Stephen Robert "Steve" Irwin (22 February 1962 - 4 September 2006), nicknamed "The Crocodile Hunter", was an Australian wildlife expert
http://astronomy.activeboard.com/t8266015/stephen-robert-steve-irwin-1962-2006/

NGC 524 was discovered by by German-British astronomer William Herschel on the 4th September 1786.
http://astronomy.activeboard.com/t58466035/ngc-524/

NGC 532 was discovered by by German-British astronomer William Herschel on the 4th September 1786.
http://astronomy.activeboard.com/t58466027/ngc-532/

NGC 626 was discovered by British astronomer John Herschel on the 4th September 1834. 
http://astronomy.activeboard.com/t58466015/ngc-626/

NGC 665 was discovered by by German-British astronomer William Herschel on the 4th September 1786.
http://astronomy.activeboard.com/t58465999/ngc-665/

NGC 673 was discovered by by German-British astronomer William Herschel on the 4th September 1786.
http://astronomy.activeboard.com/t58465990/ngc-673/

NGC 6703 was discovered by German astronomer Heinrich Louis d'Arrest on the 4th September 1863.
http://astronomy.activeboard.com/t58465974/ngc-6703/

NGC 6807 was discovered by American astronomer Edward Charles Pickering on the 4th September 1882.
http://astronomy.activeboard.com/t58465958/ngc-6807/

NGC 7075 was discovered by British astronomer John Herschel on the 4th September 1834. 
http://astronomy.activeboard.com/t58465947/ngc-7075/

NGC 7087 was discovered by British astronomer John Herschel on the 4th September 1834. 
http://astronomy.activeboard.com/t58465942/ngc-7087/

NGC 7545 was discovered by British astronomer John Herschel on the 4th September 1834. 
http://astronomy.activeboard.com/t58465936/ngc-7545/

NGC 7658 was discovered by British astronomer John Herschel on the 4th September 1834. 
http://astronomy.activeboard.com/t58465929/ngc-7658/