A spinal headache, also known as a postdural puncture headache, is a complication of needle insertion into the subarachnoid space through the dural sac. The dural sac encases the spinal cord and cerebrospinal fluid. This is a pressurized system that extends from the intracranial cavity down to the sacrum.
Peace negotiations were held in Paris throughout 1782 and much of 1783, with separate treaties ultimately concluded between Great Britain and each of its enemies. Benjamin Franklin, John Adams, and John Jay represented the United States in these talks. In the final Treaty of Paris, concluded in September 1783, Great Britain formally recognized the independence of its former American colonies, with the Mississippi River as the new nation's western boundary.
Dec. 10, 1898: Treaty of Paris Oct. - Dec. 1898: The American Peace Commission at a conference in their council-room at the Continental Hotel, Paris. LEFT TO RIGHT: Whitelaw Reid, Sen. George Gray, John Moore (Secretary), Judge William R. Day, Sen. William P. Frye, and Sen. Cushman K. Davis.