The central mechanism was the weakening of central authority. A ruler needed officials, soldiers, revenue and elite cooperation to enforce decisions across the state. When one element weakened, rivals could challenge the dynasty, provinces could become more independent, and external enemies could exploit the resulting instability.
| Factor | How it caused decline |
|---|---|
| Succession crises | Unclear or disputed succession divided elites and could produce rival claimants, civil conflict or weak rulers. |
| Political opposition | Rebellions and factional rivalries consumed resources and reduced loyalty to the central government. |
| Administrative weakness | Large territories became difficult to govern when officials or regional leaders acted independently. |
| Economic strain | Declining revenue limited the ruler’s ability to maintain armies, officials and infrastructure. Heavy taxation could also intensify opposition. |
| Military overextension | Expansion created long frontiers and expensive commitments that exceeded the state’s resources. |
| External invasion | Foreign attacks were most damaging when internal divisions had already weakened resistance. |
The Abbasid dynasty illustrates this interaction. The breakdown of Abbasid authority and internal divisions weakened the empire before Mongol invasion converted prolonged decline into political collapse. External invasion was therefore important, but it was more effective because the state had already fragmented.
A common misconception is that empires declined because of one decisive ruler or battle. A stronger historical explanation distinguishes long-term causes, such as administrative fragmentation, from short-term triggers, such as rebellion or invasion.
In a Paper 2 essay, organize paragraphs by factor rather than narrating events. For each factor, provide precise evidence, explain the causal mechanism, compare its importance with other factors, and reach a substantiated judgement that directly answers the command term.
