Jefferson, Madison, and their followers believed, on the contrary, that the adoption of the treaty would violate all national honour in practically dissolving the French alliance of 1778 and would bind the United States to monarchical England warring on republican France. The proclamation of neutrality from Washington had not been so hard to bear, since it took sides with neither belligerent; but the Jay treaty, it was said, would array America against the cause of liberty. The French and British factions were resolved to put the matter to the test in the Senate. From this time may be dated the beginning of political parties in the United States. Feeling ran high. Jay was burned in effigy in many cities and the treaty ridiculed and villified in the Republican prints. Hamilton was mobbed in New York, and Vice-President John Adams armed himself against personal violence. The ratification of the Jay treaty by exactly the required two-thirds vote in the Senate showed the relative strength of the two parties at the time, although the Senate changes more slowly than the House. The success of the treaty advocates allowed Washington to close his eight years in peace with England. Pinckney, whom he had sent to Madrid at the same time he sent Jay to London, succeeded in securing a treaty with Spain. Nearly twenty years had been spent in gaining this first acknowledgment from the Castilian. It provided for establishing a permanent boundary-line between the United States and the Spanish Floridas, arranged a control over the troublesome Indians living near the line, and assured to American traders the privilege of using the port of New Orleans as a place of trans-shipment for their produce. If the port of New Orleans should be closed, another port was to be opened to them. The Americans seemed to have succeeded, after more than ten years' effort, in getting the privilege of using the lower Mississippi. This Treaty of 1795 with Spain, although overshadowed by the contemporaneous Jay Treaty, was extremely important in American diplomatic history. Not only did it quiet the discontent of the Western people and terminate foreign intrigue in that quarter, but it affected, strangely enough, the future history of the lower Mississippi. From the time of the Pinckney Treaty, France was unceasing in her efforts to persuade Spain to give over to her care the Louisiana province, which embraced New Orleans, insisting that she was the only power strong enough to check the advance of the United States and save the rest of the Spanish possessions in America. Three years later these arguments prevailed. Louisiana was transferred to France, and very soon fell into the hands of the Americans.