Humanistic psychology also had major impetus from existentialist psychology and shares many of the fundamental tenets.

The major impetus for this was the patenting of the world's first lawnmower in 1830.

This has been the major impetus to develop either a fire-and-forget version of the system or to develop a successor with this ability.

This, and construction of privately financed roads, were the major impetus to settlement.

The canal and locks proved to be a major impetus to colonization and commerce.