Subject
- Weather[remove]202
- Marine navigation163
- Trade (practice)162
- Ships logs161
- Ships38
- Administration30
- Agriculture26
- Education26
- Accounting and Finance25
- Law and legal affairs25
- Animals22
- Health and Medicine22
- Public utilities21
- Colonialism20
- Indigenous populations19
- Land use19
- Voyages and travels19
- Commerce18
- Crime18
- Industries16