This realization can be a powerful impetus for change. The reforming impetus, however, continued. Exports have provided the primary impetus for industrialization. This was amplified to give sufficient impetus to drive the motor. His election served as the immediate impetus for the outbreak of the American Civil War. The final impetus behind the road's construction was primarily political. This was the impetus behind the creation of Disneynature. Curta suggests that the chief impetus for this identity originated in the Danubian frontier. Each wave of emigration had its own impetus. Most of the impetus, leadership, and financing for the Summer Project came from the SNCC. The body's purpose is to define the general "impetus" of the Union. The major impetus was the discovery of Compton effect. He also felt that he had lost much of his creative impetus. The initial impetus for Toungoo's military campaigns was defensive. The current Aristotelian theories of impetus and terrestrial motion were inadequate to explain these.