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Countries Regions

© 2026 Timeline Library

African American Soldiers and the United States Colored Troops (USCT) (1862–1865)

1862 - 1865

Afghan Invasion and Fall of the Safavid Dynasty (1722–1729)

1709 - 1729

Adoption of the Bill of Rights (1789–1791)

1788 - 1992

Admission of New States to the Union: Vermont through Ohio (1791–1803)

1789 - 1803

Administrative State-Building: Creation of Ministries, Civil Service, and Local Governments (1948–1965)

1948 - 1960

Administrative Reforms: Prefects, Bank of France and the University (1799–1815)

1799 - 1815

Administrative integration of tribal regions and the sedentarization campaigns (1920–1960)

1912 - 1960

Administrative and fiscal disintegration of Gran Colombia's institutions (1827–1831)

1826 - 1831

Administrative and Civil Service Reforms in India (1964–2010)

1964 - 2010

Adams–Onís Treaty and the Acquisition of Florida (1819–1821)

1817 - 1822

Acquisition and Political Status Changes of Puerto Rico (1898–present)

1898 - 2024

Acid rain, transboundary pollution, and environmental cooperation in Scandinavia (1960–1990)

1949 - 1989

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