The first United States Congress met from 1789 to 1791.
- March 4 , 1789 - Senate and House of Representatives first convene (without Quorum ) in New York City representing eleven States :
- --- Connecticut , Delaware , Georgia , Maryland , Massachusetts , New Hampshire , New Jersey , New York , Pennsylvania , South Carolina , and Virginia
- April 1 , 1789 - House first met with quorum to elect Speaker
- April 6 1789 - Senate first met with quorum to elect President ''pro Tempore'' and tally results of the U.S. Presidential Election Of 1789
- April 30 , 1789 - Inauguration of George Washington , first President Of The United States
- July 27 , 1789 - Established the Foreign Affairs ( State ) Department
- August 7 , 1789 - Established the United States War Department
- August 7 , 1789 - Adopted provisions of the Northwest Ordinance under the U.S. Constitution
- September 2 , 1789 - Established the Treasury Department
- September 24 , 1789 - Enacted Judiciary Act Of 1789 established Office of Attorney General , the composition of Supreme Court , and the entire rest of the Judiciary system
- November 21 , 1789 - North Carolina ratifies Constitution
- March 1 , 1790 - Made provisions for the first U.S. Census
- April 2 , 1790 - Accepted the cession of claims on western territory (which was to become the state of Tennessee ) by North Carolina
- May 26 , 1790 - Organized the Southwest Territory out of territory ceded by North Carolina
- May 29 , 1790 - Rhode Island And Providence Plantations ratified Constitution
- February 4 , 1791 - Kentucky admitted to Union, effective June 1 , 1792
- February 18 , 1791 - Vermont admitted to Union, effective March 4 , 1791
- June 1 1789 - An Act To Regulate The Time And Manner Of Administering Certain Oaths , ch. 1, 1 Stat. 23
- July 4 1789 - Hamilton Tariff , ch. 2, 1 Stat. 24
- September 24 1789 - Judiciary Act Of 1789 , ch. 20, 1 Stat. 73
- March 26 1790 - Naturalization Act Of 1790 , ch. 3, 1 Stat 103
- April 10 , 1790 - Patent Act.
- May 26 1790 - Southwest Ordinance , ch. 14, 1 Stat. 123
- May 31 1790 - Copyright Act Of 1790 , ch. 15, 1 Stat. 124
- July 6 1790 - Residence Act , ch. 28, 1 Stat. 130
- February 25 1791 - First Bank Of The United States , ch. 10, 1 Stat. 191
, blue states by two Anti-Federalists , and purple states by one senator from each party.]]
was elected to John Walker's seat.]]
- Theodorick Bland and then William B. Giles , At-Large
- John Brown , At-Large
- Isaac Coles , At-Large
- Samuel Griffin , At-Large
- Richard B. Lee , At-Large
- James Madison , At-Large
- Andrew Moore , At-Large
- John Page , At-Large
- Josiah Parker , At-Large
- Alexander White , At-Large
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