Glossary · Term

Union Flag

1801 · 19th century · Also known as Union Jack

The Union Flag, or Union Jack, is the national flag of the United Kingdom. Its present form dates from 1 January 1801, when the red saltire of St Patrick, representing Ireland, was added to the crosses of St George for England and St Andrew for Scotland, which had been combined on the flag since 1606.

Union Flag
Image: Original: Acts of Union 1800 Vector: Zscout370 · Public domain · Wikimedia Commons

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United Kingdom of Great Britain and IrelandFoundation

See also

Cite this entry
APA
The Epoch Institute. (2026). Union Flag. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/union-flag
MLA
“Union Flag.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/union-flag. Accessed .
Chicago
The Epoch Institute. “Union Flag.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/union-flag.
Harvard
The Epoch Institute (2026) ‘Union Flag’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/union-flag (Accessed: ).

Last reviewed October 2026Random entry ↻