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Historical Values
Year Value
1990 17 September 1787, effective 4 June 1789
1991 17 September 1787, effective 4 June 1789
1992 17 September 1787, effective 4 June 1789
1993 17 September 1787, effective 4 June 1789
1994 17 September 1787, effective 4 March 1789
1995 17 September 1787, effective 4 March 1789
1996 17 September 1787, effective 4 March 1789
1997 17 September 1787, effective 4 March 1789
1998 17 September 1787, effective 4 March 1789
1999 17 September 1787, effective 4 March 1789
2000 17 September 1787, effective 4 March 1789
2001 17 September 1787, effective 4 March 1789
2002 17 September 1787, effective 4 March 1789
2003 17 September 1787, effective 4 March 1789
2004 17 September 1787, effective 4 March 1789
2005 17 September 1787, effective 4 March 1789
2006 17 September 1787, effective 4 March 1789
2007 17 September 1787, effective 4 March 1789
2008 17 September 1787, effective 4 March 1789
2009 17 September 1787, effective 4 March 1789
2010 17 September 1787, effective 4 March 1789
2011 17 September 1787, effective 4 March 1789
2012 17 September 1787, effective 4 March 1789
2013 previous 1781 (Articles of Confederation and Perpetual Union); latest drafted July - September 1787, submitted to the Congress of the Confederation 20 September 1787, submitted for states' ratification 28 September 1787, ratification completed by nine states 21 June 1788, effective 4 March 1789; amended many times, last in 1992 (2013)
2014 previous 1781 (Articles of Confederation and Perpetual Union); latest drafted July - September 1787, submitted to the Congress of the Confederation 20 September 1787, submitted for states' ratification 28 September 1787, ratification completed by nine states 21 June 1788, effective 4 March 1789; amended many times, last in 1992 (2014)
2015 previous 1781 (Articles of Confederation and Perpetual Union); latest drafted July - September 1787, submitted to the Congress of the Confederation 20 September 1787, submitted for states' ratification 28 September 1787, ratification completed by nine states 21 June 1788, effective 4 March 1789; amended many times, last in 1992 (2014)
2016 previous 1781 (Articles of Confederation and Perpetual Union); latest drafted July - September 1787, submitted to the Congress of the Confederation 20 September 1787, submitted for states' ratification 28 September 1787, ratification completed by nine states 21 June 1788, effective 4 March 1789; amended many times, last in 1992 (2016)
2017 previous 1781 (Articles of Confederation and Perpetual Union); latest drafted July - September 1787, submitted to the Congress of the Confederation 20 September 1787, submitted for states' ratification 28 September 1787, ratification completed by nine states 21 June 1788, effective 4 March 1789; amended many times, last in 1992 (2016)
2018 history: previous 1781 (Articles of Confederation and Perpetual Union); latest drafted July - September 1787, submitted to the Congress of the Confederation 20 September 1787, submitted for states' ratification 28 September 1787, ratification completed by nine of the 13 states 21 June 1788, effective 4 March 1789 (2018) | amendments: proposed as a "joint resolution" by Congress, which requires a two-thirds majority vote in both the House of Representatives and the Senate or by a constitutional c
2019 history: previous 1781 (Articles of Confederation and Perpetual Union); latest drafted July - September 1787, submitted to the Congress of the Confederation 20 September 1787, submitted for states' ratification 28 September 1787, ratification completed by nine of the 13 states 21 June 1788, effective 4 March 1789 | amendments: proposed as a "joint resolution" by Congress, which requires a two-thirds majority vote in both the House of Representatives and the Senate or by a constitutional conventi
2020 history: previous 1781 (Articles of Confederation and Perpetual Union); latest drafted July - September 1787, submitted to the Congress of the Confederation 20 September 1787, submitted for states' ratification 28 September 1787, ratification completed by nine of the 13 states 21 June 1788, effective 4 March 1789 | amendments: proposed as a "joint resolution" by Congress, which requires a two-thirds majority vote in both the House of Representatives and the Senate or by a constitutional conventi
2021 history: previous 1781 (Articles of Confederation and Perpetual Union); latest drafted July - September 1787, submitted to the Congress of the Confederation 20 September 1787, submitted for states' ratification 28 September 1787, ratification completed by nine of the 13 states 21 June 1788, effective 4 March 1789 amendments: proposed as a "joint resolution" by Congress, which requires a two-thirds majority vote in both the House of Representatives and the Senate or by a constitutional convention
2022 history: previous 1781 (Articles of Confederation and Perpetual Union); latest drafted July - September 1787, submitted to the Congress of the Confederation 20 September 1787, submitted for states' ratification 28 September 1787, ratification completed by nine of the 13 states 21 June 1788, effective 4 March 1789 amendments: proposed as a "joint resolution" by Congress, which requires a two-thirds majority vote in both the House of Representatives and the Senate or by a constitutional convention
2023 history: previous 1781 (Articles of Confederation and Perpetual Union); latest drafted July - September 1787, submitted to the Congress of the Confederation 20 September 1787, submitted for states' ratification 28 September 1787, ratification completed by nine of the 13 states 21 June 1788, effective 4 March 1789 amendments: proposed as a "joint resolution" by Congress, which requires a two-thirds majority vote in both the House of Representatives and the Senate or by a constitutional convention
2024 history: previous 1781 (Articles of Confederation and Perpetual Union); latest drafted July - September 1787, submitted to the Congress of the Confederation 20 September 1787, submitted for states' ratification 28 September 1787, ratification completed by nine of the 13 states 21 June 1788, effective 4 March 1789 amendments: proposed as a "joint resolution" by Congress, which requires a two-thirds majority vote in both the House of Representatives and the Senate or by a constitutional convention
2025 history: previous 1781 (Articles of Confederation and Perpetual Union); latest drafted July - September 1787, submitted to the Congress of the Confederation 20 September 1787, submitted for states' ratification 28 September 1787, ratification completed by nine of the 13 states 21 June 1788, effective 4 March 1789 amendment process: proposed as a "joint resolution" by Congress, which requires a two-thirds majority vote in both the House of Representatives and the Senate or by a constitutional con