The 1st United States Congress, comprising the United States Senate and the United States House of Representatives, met from March 4, 1789, to March 4, 1791, during the first two years of George Washington's presidency, first at Federal Hall in New York City and later at Congress Hall in Philadelphia. With the initial meeting of the First Congress, the United States federal government officially began operations under the new frame of government established by the 1787 Constitution. The apportionment of seats in the House of Representatives was based on the provisions of Article I, Section 2, Clause 3, of the Constitution. Both chambers had a Pro-Administration majority. Twelve articles of amendment to the Constitution were passed by this Congress and sent to the states for ratification; the ten ratified as additions to the Constitution on December 15, 1791, are collectively known as the Bill of Rights, with an additional amendment ratified more than two centuries later to become the Twenty-seventh Amendment to the United States Constitution.
Delaware became a U.S. state in 1787, which allowed it to send congressional delegations to the United States Senate and United States House of Representatives beginning with the 1st United States Congress in 1789. Voters in each state elect two senators to serve for six years, and members of the House to two-year terms. Before 1914 United States Senators were chosen by the Delaware General Assembly and before 1935 all congressional terms began March 4.
Since Arkansas became a U.S. state in 1836, it has sent congressional delegations to the United States Senate and United States House of Representatives, beginning with the 25th United States Congress in 1837. Before becoming a state, the Arkansas Territory elected a non-voting delegate at-large to Congress, beginning with the 16th United States Congress in 1819. Each state elects two senators to serve for six years in general elections, with their re-election staggered. Prior to the ratification of the Seventeenth Amendment in 1913, senators were elected by the Arkansas General Assembly. Each state elects varying numbers of members of the House, depending on population, to two-year terms.
The 1920 United States Senate elections were elections for the United States Senate that coincided with the presidential election of Warren G. Harding. The 32 seats of Class 3 were contested in regular elections, and special elections were held to fill vacancies. Democrat Woodrow Wilson's unpopularity allowed Republicans to win races across the country, winning ten seats from the Democrats and providing them with an overwhelming 59-to-37 majority. The Republican landslide was so vast that Democrats lost over half of the contested seats this year and failed to win a single race outside the South. In fact, this is the most recent occasion where every race decided by under 10 points all voted for the same party, showcasing the sheer strength of Republicans' performance in this election.
The 1918 United States House of Representatives elections were elections for the United States House of Representatives to elect members to serve in the 66th United States Congress. They were held for the most part on November 5, 1918, while Maine held theirs on September 9. They occurred in the middle of President Woodrow Wilson's second term.
The 1888 United States House of Representatives elections were held for the most part on November 6, 1888, with three states holding theirs early between June and September. They occurred at the same time as the election of President Benjamin Harrison. Elections were initially held for 325 seats of the United States House of Representatives, representing 38 states, to serve in the 51st United States Congress. Six new states would later join the union and increase the House to 332 seats. Special elections were also held throughout the year.
The 1878–79 United States House of Representatives elections were held on various dates in various states between June 3, 1878, and September 3, 1879. Each state set its own date for its elections to the House of Representatives before or after the first session of the 46th United States Congress convened on March 18, 1879. Elections were held for all 293 seats, representing 38 states. This was the last election cycle that at least one state held its regular congressional election in an odd-numbered year.
The 1838–39 United States House of Representatives elections were held on various dates in various states between July 2, 1838, and November 5, 1839. Each state set its own date for its elections to the House of Representatives before the first session of the 26th United States Congress convened on December 2, 1839. They occurred during President Martin Van Buren's term. Elections were held for all 242 seats, representing 26 states.
The 1812–13 United States House of Representatives elections were held on various dates in various states between August 3, 1812, and April 30, 1813. Each state set its own date for its elections to the House of Representatives before the first session of the 13th United States Congress convened on May 24, 1813. They coincided with James Madison being re-elected president.
The 1808–09 United States House of Representatives elections were held on various dates in various states between April 26, 1808, and May 5, 1809. Each state set its own date for its elections to the House of Representatives before the first session of the 11th United States Congress convened on May 22, 1809. They coincided with James Madison being elected as president. Elections were held for all 142 seats, representing 17 states.
The 1798–99 United States House of Representatives elections were held on various dates in various states between April 24, 1798 in New York and August 1, 1799 in Tennessee. Each state set its own date for its elections to the House of Representatives, with some after the official start of the 6th United States Congress on March 4, 1799, but before the start of the first session of this Congress in Philadelphia on December 2, 1799. These elections were held during President John Adams term. It was the last congressional session before the move to the new capital at Washington, D.C. Elections were held for all 106 seats, representing 16 states.
The 1794–95 United States House of Representatives elections were held on various dates in various states between August 25, 1794, and September 5, 1795 (Kentucky). Each state set its own date for its elections to the House of Representatives before the first session of the 4th United States Congress convened on December 7, 1795. They were held during President George Washington's second term. Elections were held for all 105 seats, representing 15 states.
The 1792–93 United States House of Representatives elections were held on various dates in various states between August 27, 1792, and September 6, 1793. Each state set its own date for its elections to the House of Representatives before the first session of the 3rd United States Congress convened on December 2, 1793. With the addition of the new state of Kentucky's representatives, and the congressional reapportionment based on the 1790 United States census, the size of the House increased to 105 seats.
The 1790–91 United States House of Representatives elections were held on various dates in various states between April 27, 1790, and October 11, 1791. Each state set its own date for its elections to the House of Representatives before or after the first session of the 2nd United States Congress convened on October 24, 1791. This was the first midterm election cycle, which took place in the middle of President George Washington's first term. The size of the House increased to 67 seats after the new state of Vermont elected its first representatives.
The 1788–89 United States House of Representatives elections were the first U.S. House of Representatives elections following the adoption of the Constitution of the United States. Each state set its own date for its congressional elections, ranging from November 24, 1788, to March 5, 1789, before or after the first session of the 1st United States Congress convened on March 4, 1789. They coincided with the election of George Washington as the first president of the United States.
The 1793 United States House of Representatives elections in New York were held in January 1793, to elect 10 U.S. Representatives to represent the State of New York in the United States House of Representatives.
