Categories
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The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Guinea (1 member)
- Guinea-Bissau (19 members)
- Guyana (19 members)
- Haiti (20 members)
- Harvard (5 members)
- Has location (2,185 members)
- Hawaii (12 members)
- Hazardous Waste (12 members)
- Hazing (17 members)
- Health (788 members)
- Heliophysics (8 members)
- Homelessness (16 members)
- Honduras (1 member)
- Hong Kong (1 member)
- Housing (55 members)
- Houston (6 members)
- Human Population (2 members)
- Human Rights (554 members)
- Hungary (4 members)
- Hydrogen-Based Energy (7 members)