Historical thinking skills · AP U.S. History, AP World History: Modern

Causation

Causation: Explaining the causes and effects of historical developments, including their relative importance and short- and long-term consequences.

By the CollegePrepRoom editorial team · Updated · How we write and check these pages

What it means

Causal reasoning explains how a cause produced an effect, distinguishes between immediate triggers and long-term causes, and weighs which causes mattered most. Strong causal arguments also recognize unintended consequences.

Causation is one of the three reasoning processes used to structure AP history long essays.

Example

The firing on Fort Sumter in 1861 was the immediate trigger for the Civil War, but long-term causes included disputes over the expansion of slavery into western territories and the breakdown of the national party system in the 1850s.

On the exam

LEQ prompts often ask you to evaluate causes or effects. Using causation to frame the argument earns an analysis point.

Lessons and practice questions

Related terms