History of Light year

	Revision 14 . . November 23, 2001 3:19 am by (logged).109.250.xxx [light year is defined in terms of Julian year, not time Earth takes to orbit sun]
	Revision 13 . . November 22, 2001 4:31 pm by AxelBoldt
	Revision 12 . . November 22, 2001 4:25 pm by AxelBoldt
	Revision 11 . . November 22, 2001 4:22 pm by Gareth Owen
	Revision 10 . . (edit) September 19, 2001 11:40 am by Zundark [AU -> astronomical unit]

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