| Historical and Cultural Archaeology Studies | 39 |
| Archaeology and ancient environmental studies | 24 |
| Emergency and Acute Care Studies | 18 |
| Historical Architecture and Urbanism | 18 |
| Historical Economic and Social Studies | 17 |
| Political and Economic history of UK and US | 16 |
| Urbanization and City Planning | 15 |
| Historical Studies and Socio-cultural Analysis | 12 |
| History of Science and Medicine | 12 |
| Disaster Response and Management | 10 |
| Historical Art and Culture Studies | 9 |
| Scottish History and National Identity | 9 |
| Irish and British Studies | 8 |
| Cultural Heritage Management and Preservation | 8 |
| Housing, Finance, and Neoliberalism | 8 |
| Cultural Industries and Urban Development | 8 |
| Reformation and Early Modern Christianity | 8 |
| Archaeological Research and Protection | 8 |
| Sports, Gender, and Society | 8 |
| Healthcare innovation and challenges | 8 |