Paris, France/parisE614
Previous | Home | Next"The oldest observatory in the world still operating, founded by Colbert 21 June 1667, during the summer soltice, fixed the meridian of Paris by a line of copper on the second floor. Built from plans by Claude Perrault, it has hosted the greatest astronomers, both from France and other countries: The dynasty of Cassini, from 1671 to the Revolution, the Danish astronomer Römer who in 1671 measured the speed of light, Delambre and Méchain who were "fathers" of the meter, Arago, Foucault, Fizeau, Le Verrier. . ."
