Source
Penny Black (Wikipedia)
Wikipedia
Facts
URLhttps://en.wikipedia.org/wiki/Penny_Black
PublisherWikimedia Foundation
Source TypeEncyclopedia
Sources
Claims Backed By This Source (14 claims)
This source backs 14 claims across the atlas. As facts: 8 well-attested. As cited relationships: 1 holds. Plus 5 entities citing it as a general reference with no single fact or relationship attached.
Disposition By Topic
- Milestones, 9 claims: 4 well-attested, 1 holds, 4 general references.
- Sources, 3 claims: 3 well-attested.
- Subcategories, 2 claims: 1 well-attested, 1 general references.
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