Wikipedia:Selected anniversaries/June 20

June 20: World Refugee Day; Flag Day in Argentina (since 1938); West Virginia Day in the U.S. state of West Virginia.

• 451 - The Battle of Chalons against Attila the Hun is the last major battle of the Western Roman Empire.

• 1756 - A garrison of the British army in India was imprisoned in the Black Hole of Calcutta.

• 1789 - 577 deputies of the French National Assembly took the Tennis Court Oath, starting the French Revolution.

• 1837 - Queen Victoria (pictured) succeeded to the British throne.

• 1973 - Snipers fired into a crowd of Peronists near the Ezeiza Airport in Buenos Aires, Argentina, killing at least 13 people and injuring 365 others.

Recent days: June 19 – June 18 – June 17

More anniversaries:

• May 31
• June 1
• June 2