Quadripoint
The Four Corners Monument is the only point in the United States where four states meet: Colorado, Utah, New Mexico, and Arizona meet at right angles. The United States first acquired the area now called Four Corners from Mexico after the Mexican–American War in 1848. In 1863 Congress created Arizona Territory from the western part of New Mexico Territory. The boundary was defined as a line running due south from the southwest corner of Colorado Territory, which had been created in 1861. By defining one boundary as starting at the corner of another Congress ensured the eventual creation of four states meeting at a point, regardless of the inevitable errors of boundary surveying. The monument is centered at .
4th United States Congress
The Fourth United States Congress was a meeting of the legislative branch of the United States federal government, consisting of the United States Senate and the United States House of Representatives. It met at Congress Hall in Philadelphia, Pennsylvania, from March 4, 1795, to March 4, 1797, during the last two years of George Washington's presidency. The apportionment of seats in the House of Representatives was based on the First Census of the United States in 1790. The Senate had a Federalist majority, and the House had a Democratic-Republican majority.
This was the first Congress to have organized political parties. Details on changes are shown below in the "Changes in membership" section.This list is arranged by chamber, then by state. Senators are listed by class, and Representatives are listed by district.