}}</ref> The year 4004 [[B.C.]] was considered to be also a remarkable astronomical epoch by the great French astronomer [[Pierre Simon Laplace|Laplace]] who in his ''Méchanique Céleste'', Tom III.p. 113, announced a curious discovery - it was supposed to be a year when the great axis of the earth's [[orbit]] coincided with the line of the [[equinox]]es, and consequently true and mean equinoxes were united.<ref>{{cite book |title=Chronology and geography |author=William Hales |publisher=C.J.G. & F. Rivington |year=1830 |page=228|url=https://books.google.com/books?id=aNfVAAAAMAAJ}}</ref> | }}</ref> The year 4004 [[B.C.]] was considered to be also a remarkable astronomical epoch by the great French astronomer [[Pierre Simon Laplace|Laplace]] who in his ''Méchanique Céleste'', Tom III.p. 113, announced a curious discovery - it was supposed to be a year when the great axis of the earth's [[orbit]] coincided with the line of the [[equinox]]es, and consequently true and mean equinoxes were united.<ref>{{cite book |title=Chronology and geography |author=William Hales |publisher=C.J.G. & F. Rivington |year=1830 |page=228|url=https://books.google.com/books?id=aNfVAAAAMAAJ}}</ref> |