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The Acts of Union create the Kingdom of Great Britain

On this day · 1 May 1707
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The Acts of Union create the Kingdom of Great Britain

On a single spring day in 1707, two ancient rival crowns dissolved their separate parliaments to become one new kingdom.

Verified · National Records of Scotland (Scottish Archives for Schools)

On 1 May 1707, the Acts of Union came into force, merging the Kingdom of England and the Kingdom of Scotland into one state named Great Britain. The very first article of the agreement was emphatic: the two realms “shall be united into one kingdom.”

The union was no sudden stroke. England and Scotland had shared a monarch since 1603, but kept separate parliaments. The Treaty of Union, settled in 1706, was ratified by the Parliament of Scotland in January 1707 and received royal assent in March. Scotland’s own parliament voted itself out of existence, swayed by trade access to England’s empire and the settlement of crushing public debts.

On 1 May 1707, the two kingdoms of Scotland and England shall be united into one kingdom.

The new realm shared a single Parliament at Westminster, a common flag combining the crosses of St Andrew and St George, and Queen Anne as sovereign. Scots law and the church were preserved. The framework forged that day still underpins the modern United Kingdom.

1 May 1707
Union took effect
2 kingdoms
merged into one
1603
crowns first shared

Sources & references

3 references

Well-established. Corroborated by 3 independent sources.

1 National Records of Scotland (Scottish Archives for Schools) national archive education resource “On 1 May 1707, the two kingdoms of Scotland and England shall be united into one kingdom GREAT BRITAIN” scottisharchivesforschools.org ↗
2 The History of Parliament parliamentary research institution “Since the Union was to take effect from 1 May 1707, the Treaty declared that the first Parliament of Great Britain was to last for the duration of the current parliament at Westminster.” historyofparliament.com ↗
3 Encyclopædia Britannica Encyclopedia “Act of Union, (May 1, 1707), treaty that effected the union of England and Scotland under the name of Great Britain.” britannica.com ↗
✓ Last reviewed Jun 7, 2026

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