Describe the objective of the Congress of Vienna. Who was the leading diplomat during these proceedings?

in november 1781, john hanson became the first president of the united states in congress assembled, under the articles of confederation. many people have argued that john hanson, and not george washington, was the first president of the united states, but this is not quite true.

explanation:

studies show tha in 7.5 billion years from now, the expanding sun will engulf, and destroy, the earth.