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United States Senate

Dates of Sessions of the Congress, 1789-present (present-1789)

Congress

Session

Begin Date

Adjourn Date

Recesses

Senate	House

1

1

Mar 4, 1789

Sep 29, 1789

2

Jan 4, 1790

Aug 12, 1790

3

Dec 6, 1790

Mar 3, 1791

2

S

Mar 4, 1791

Mar 4, 1791

1

Oct 24, 1791

May 8, 1792

2

Nov 5, 1792

Mar 2, 1793

3

S

Mar 4, 1793

Mar 4, 1793

1

Dec 2, 1793

Jun 9, 1794

2

Nov 3, 1794

Mar 3, 1795

4

S

Jun 8, 1795

Jun 26, 1795

1

Dec 7, 1795

Jun 1, 1796

2

Dec 5, 1796

Mar 3, 1797

5

S

Mar 4, 1797

Mar 4, 1797

1

May 15, 1797

Jul 10, 1797

S

Jul 17, 1798

Jul 19, 1798

2

Nov 13, 1797

Jul 16, 1798

3

Dec 3, 1798

Mar 3, 1799

6

1

Dec 2, 1799

May 14, 1800

2

Nov 17, 1800

Mar 3, 1801

Dec 23-Dec 30, 1800

Dec 23-Dec 30, 1800

7

S

Mar 4, 1801

Mar 5, 1801

1

Dec 7, 1801

May 3, 1802

2

Dec 6, 1802

Mar 3, 1803

8

1

Oct 17, 1803

Mar 27, 1804

2

Nov 5, 1804

Mar 3, 1805

9

1

Dec 2, 1805

Apr 21, 1806

2

Dec 1, 1806

Mar 3, 1807

10

1

Oct 26, 1807

Apr 25, 1808

2

Nov 7, 1808

Mar 3, 1809

11

S

Mar 4, 1809

Mar 7, 1809

1

May 22, 1809

Jun 28, 1809

2

Nov 27, 1809

May 1, 1810

3

Dec 3, 1810

Mar 3, 1811

12

1

Nov 4, 1811

Jul 6, 1812

2

Nov 2, 1812

Mar 3, 1813

13

1

May 24, 1813

Aug 2, 1813

2

Dec 6, 1813

Apr 18, 1814

3

Sep 19, 1814

Mar 3, 1815

14

1

Dec 4, 1815

Apr 30, 1816

2

Dec 2, 1816

Mar 3, 1817

15

S

Mar 4, 1817

Mar 6, 1817

1

Dec 1, 1817

Apr 20, 1818

Dec 24-Dec 29, 1817

Dec 24-Dec 29, 1817

2

Nov 16, 1818

Mar 3, 1819

16

1

Dec 6, 1819

May 15, 1820

2

Nov 13, 1820

Mar 3, 1821

17

1

Dec 3, 1821

May 8, 1822

2

Dec 2, 1822

Mar 3, 1823

18

1

Dec 1, 1823

May 27, 1824

2

Dec 6, 1824

Mar 3, 1825

19

S

Mar 4, 1825

Mar 9, 1825

1

Dec 5, 1825

May 22, 1826

2

Dec 4, 1826

Mar 3, 1827

20

1

Dec 3, 1827

May 26, 1828

2

Dec 1, 1828

Mar 3, 1829

Dec 24-Dec 29, 1828

Dec 24-Dec 29, 1828

21

S

Mar 4, 1829

Mar 17, 1829

1

Dec 7, 1829

May 31, 1830

2

Dec 6, 1830

Mar 3, 1831

22

1

Dec 5, 1831

Jul 16, 1832

2

Dec 3, 1832

Mar 2, 1833

23

1

Dec 2, 1833

Jun 30, 1834

2

Dec 1, 1834

Mar 3, 1835

24

1

Dec 7, 1835

Jul 4, 1836

2

Dec 5, 1836

Mar 3, 1837

25

S

Mar 4, 1837

Mar 10, 1837

1

Sep 4, 1837

Oct 16, 1837

2

Dec 4, 1837

Jul 9, 1838

3

Dec 3, 1838

Mar 3, 1839

26

1

Dec 2, 1839

Jul 21, 1840

2

Dec 7, 1840

Mar 3, 1841

27

S

Mar 4, 1841

Mar 15, 1841

1

May 31, 1841

Sep 13, 1841

2

Dec 6, 1841

Aug 31, 1842

3

Dec 5, 1842

Mar 3, 1843

28

1

Dec 4, 1843

Jun 17, 1844

2

Dec 2, 1844

Mar 3, 1845

29

S

Mar 4, 1851

Mar 20, 1845

1

Dec 1, 1845

Aug 10, 1846

2

Dec 7, 1846

Mar 3, 1847

30

1

Dec 6, 1847

Aug 14, 1848

2

Dec 4, 1848

Mar 3, 1849

31

S

Mar 5, 1849

Mar 23, 1849

1

Dec 3, 1849

Sep 30, 1850

2

Dec 2, 1850

Mar 3, 1851

32

S

Mar 4, 1851

Mar 13, 1851

1

Dec 1, 1851

Aug 31, 1852

2

Dec 6, 1852

Mar 3, 1853

33

S

Mar 4, 1853

Apr 11, 1853

1

Dec 5, 1853

Aug 7, 1854

2

Dec 4, 1854

Mar 3, 1855

34

1

Dec 3, 1855

Aug 18, 1856

2

Aug 21, 1856

Aug 30, 1856

3

Dec 1, 1856

Mar 3, 1857

35

S

Mar 4, 1857

Mar 14, 1857

1

Dec 7, 1857

Jun 14, 1858

Dec 23-Jan 4, 1858

Dec 23-Jan 4, 1858

S

Jun 15, 1858

Jun 16, 1858

2

Dec 6, 1858

Mar 3, 1859

Dec 23-Jan 4, 1859

Dec 23-Jan 4, 1859

36

S

Mar 4, 1859

Mar 10, 1859

1

Dec 5, 1859

Jun 25, 1860

S

Jun 26, 1860

Jun 28, 1860

2

Dec 3, 1860

Mar 3, 1861

37

S

Mar 4, 1861

Mar 28, 1861

1

Jul 4, 1861

Aug 6, 1861

2

Dec 2, 1861

Jul 17, 1862

3

Dec 1, 1862

Mar 3, 1863

Dec 23-Jan 5, 1863

Dec 23-Jan 5, 1863

38

S

Mar 4, 1863

Mar 14, 1863

1

Dec 7, 1863

Jul 4, 1864

Dec 23-Jan 5, 1864

Dec 23-Jan 4, 1864

2

Dec 5, 1864

Mar 3, 1865

Dec 22-Jan 5, 1865

Dec 22-Jan 5, 1865

39

S

Mar 4, 1865

Mar 11, 1865