
Figure 1
Publication rate of papers included in the dataset window.

Figure 2
Number of papers published in the top 5 most prevalent academic journals in the dataset.

Figure 3
Top 10 terms per 10 topics as found within Period 1: 1990–2001.
Table 1
Interpreted topic names for Period 1: 1990–2001.
| TOPIC # | TOPIC NAME | KEY TERMS |
|---|---|---|
| Topic 1 | Shifting Practices | changing, practices, Geoffrey, recent, cultural |
| Topic 2 | Explored Monuments | monument, evidence, question, analogy, show |
| Topic 3 | Bluestone Landscape | bluestones, Wales, sources, area |
| Topic 4 | Conservation Impacts | monuments, conservation, political, government |
| Topic 5 | Social Relationships | society, suggests, megaliths, changes, new |
| Topic 6 | English Management | English, Avebury, visitor, national, management |
| Topic 7 | Prehistoric Management | different, societies, recognition, prehistoric, management |
| Topic 8 | Neolithic Presence | Neolithic, role, present, interest, symbolic, ritual |
| Topic 9 | English Heritage | heritage, Wainwright, England, sites, ancestors |
| Topic 10 | Built Past | prehistoric, construction, megalithic, past, contemporary |

Figure 4
Top 10 terms per 11 topics as found within Period 2: 2002–2012.
Table 2
Interpreted topic names for Period 2: 2002–2012.
| TOPIC # | TOPIC NAME | KEY TERMS |
|---|---|---|
| Topic 1 | Neolithic Sites | prehistoric, Neolithic, site, features, landscapes |
| Topic 2 | Shifting Research | research, significance, change, future, British |
| Topic 3 | Built Heritage | architectural, buildings, monuments, culture, society |
| Topic 4 | Bluestone Research | bluestone, data, landscape, source, new |
| Topic 5 | Heritage Materials | material, monument, ritual, excavations |
| Topic 6 | Shifting Perceptions | site, data, project, interpretations, academic, new |
| Topic 7 | Heritage Management | heritage, management, sites, issues, historic, environment |
| Topic 8 | Heritage Tourism | tourism, visitors, planning, resources, management |
| Topic 9 | Shifting Landscape | landscape, development, presented, new, results |
| Topic 10 | Natural Surroundings | natural, area, interest, understanding, survey, sacred |
| Topic 11 | Present Context | different, context, age, prehistory, today, major |

Figure 5
Top 10 terms per 11 topics as found within Period 3: 2013–2022.
Table 3
Interpreted topic names for Period 3: 2013–2022.
| TOPIC # | TOPIC NAME | KEY TERMS |
|---|---|---|
| Topic 1 | Current Perspectives | prehistoric, present, development, recent, suggest |
| Topic 2 | Site Features | interpretations, evidence, acoustic, site, identified |
| Topic 3 | Shifting Research | research, landscape, data, knowledge, material |
| Topic 4 | Monument Studies | monuments, new, prehistoric, studies, recent, objects |
| Topic 5 | Neolithic Features | construction, Neolithic, presence, field, range, time |
| Topic 6 | World Heritage | heritage, world, site, built, environment, people |
| Topic 7 | Site Excavations | landscape, complex, excavations, new, Salisbury |
| Topic 8 | English Monuments | sarsen, monument, locations, England, geochemical |
| Topic 9 | Surrounding Features | Neolithic, late, Bronze, Durrington, walls, features |
| Topic 10 | Bluestone Origins | Preseli, bluestone, source, analyses, Wales, data, Mynydd |
| Topic 11 | Expanding Research | experience, research, theory, British, project, new, work |

Figure 6
Distribution of similarity patterns between all topics and periods.
Table 4
Overview of related topics between periods.
| TOPICS WITH THE HIGHEST SIMILARITY BETWEEN PERIODS | ||
|---|---|---|
| Pair A | Bluestone Research (Period 2) | Bluestone Origins (Period 3) |
| Pair B | Heritage Management (Period 2) | World Heritage (Period 3) |
| Pair C | Bluestone Landscape (Period 1) | Bluestone Origins (Period 3) |

Figure 7
Five main topics per period.
