What was the institution headed by "The Last Universalist" during the 19th century charged with?
Bureau des Longitudes The Bureau des Longitudes (] ) is a French scientific institution, founded by decree of 25 June 1795 and charged with the improvement of nautical navigation, standardisation of time-keeping, geodesy and astronomical observation. During the 19th century, it was responsible for synchronizing clocks across the world. It was headed during this time by François Arago and Henri Poincaré. The Bureau now functions as an academy and still meets monthly to discuss topics related to astronomy.
Spiritualists' National Union The Spiritualists' National Union (SNU) is a Spiritualist organisation, founded in the United Kingdom in 1901, and is one of the largest spiritualist groups in the world. Its motto is "Light, Nature, Truth".