Infact
85 / 100
True London

The first traffic light was installed on December 10, 1868, in London near the British Parliament building.

Infact verdict: True (85/100).

The claim that the first traffic light was installed on December 10, 1868, in London near the British Parliament building is supported by multiple sources. Evidence from the Inclusive City Maker and Wikipedia confirms this date and location, with John Peake Knight credited for its design. Thus, the claim is accurate and corroborated by historical records.

May 17, 2026 Language: en 1 claim analyzed
How is this score determined? →

Individual claims

85
True technology
The first traffic light was installed on December 10, 1868, in London near the British Parliament building.
The evidence from 'Inclusive City Maker' and Wikipedia confirms that the first traffic light was installed in London on December 10, 1868, near the British Parliament building. Both sources agree on the date and location, supporting the claim's accuracy.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 90
Web Consensus Weight 50
Source Quality Score 95
Source Quality Weight 25
Llm Reasoning Score 90
Llm Reasoning Weight 25
Weighted Total 85
Evidence Summary 2 web sources corroborate the claim: 'Inclusive City Maker' and 'Wikipedia'.

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