Step 1: Alternate structuring: organise by 'what is being studied':
Group by focus: People and their culture (social/cultural geography) → How people earn a living (economic geography, with sub-fields like agricultural/industrial/transport geography) → Where people live (population and settlement geography) → How people are governed (political geography) → How the region changed historically (historical geography).
Step 2: Restate as an organised list:
This five/six-way grouping — social-cultural, economic (with its many sub-branches), population, settlement, political, and historical — together makes up the discipline of Human Geography.
Step 3: Final Answer:
Human Geography's major fields are social/cultural, economic (with sub-fields like agricultural, industrial, transport geography), population, settlement, political, and historical geography.