Question: What was the institution headed by "The Last Universalist" during the 19th century charged with?

<P0-S0> Spidertown was a small, agricultural supply and services based community in southwestern Ontario, Canada that existed in the last half of the 19th and the early 20th century. <P0-S1>  The site of the former hamlet is located at the present intersection of Mount Carmel Drive, Blackbush Line and Salem Road, on the boundary between the current municipality of North Middlesex and the municipality of South Huron. <P0-S2>  Little is currently known of Spidertown's founding, nor the origin of its name. <P0-S3>  The hamlet is described in one source as consisting, at one point in time, of "taverns on both corners" and "four homes". <P0-S4>  It is known, that in the latter 19th century a general store was operated in the community by Alexander Todd, presumably the same individual who operated two other general stores during the period at Maguire and Moray as well. <P0-S5>  A medical doctor, T. L. Flaherty, maintained a practice in a corner house in the hamlet in the latter 19th century, but is known to have moved his office to Mount Carmel, 2 km to the east, before 1898. <P0-S6>  It is believed that Spidertown began to go into decline because of its inability to compete economically with the nearby hamlet of Mount Carmel. <P0-S7>  Spidertown is recorded as having disappeared by 1914. <SEP> <P1-S0> Jules Henri Poincaré (] ; 29 April 1854 – 17 July 1912) was a French mathematician, theoretical physicist, engineer, and philosopher of science. <P1-S1>  He is often described as a polymath, and in mathematics as "The Last Universalist" by Eric Temple Bell, since he excelled in all fields of the discipline as it existed during his lifetime. <SEP> <P2-S0> The Divan-ı Hümâyûn, in English the Imperial Council, was the "de facto" cabinet of the Ottoman Empire for most of its history. <P2-S1>  Initially an informal gathering of the senior ministers presided over by the Sultan in person, in the mid-15th century the Council's composition and function became firmly regulated. <P2-S2>  The Grand Vizier, who became the Sultan's deputy as the head of government, assumed the role of chairing the Council, which comprised also the other viziers, charged with military and political affairs, the two "kadi'askers" or military judges, the "defterdars" in charge of finances, the "nişancı" in charge of the palace scribal service, and later the Kapudan Pasha, the head of the Ottoman Navy, and occasionally the "beylerbey" of Rumelia and the Agha of the Janissaries. <P2-S3>  The Council met in a dedicated building in the Second Courtyard of the Topkapi Palace, initially daily, then for four days a week by the 16th century. <P2-S4>  Its remit encompassed all matters of governance of the Empire, although the exact proceedings are no longer known. <P2-S5>  It was assisted by an extensive secretarial bureaucracy under the "reis ül-küttab" for the drafting of appropriate documents and the keeping of records. <P2-S6>  The Imperial Council remained the main executive organ of the Ottoman state until the mid-17th century, after which it lost most of its power to the office of the Grand Vizier. <P2-S7>  With the Tanzimat reforms of the early 19th century, it was eventually succeeded by a Western-style cabinet government. <SEP> <P3-S0> 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. <P3-S1>  During the 19th century, it was responsible for synchronizing clocks across the world. <P3-S2>  It was headed during this time by François Arago and Henri Poincaré. <P3-S3>  The Bureau now functions as an academy and still meets monthly to discuss topics related to astronomy.