set t in motion, set the wheels in motion, Closes Insurers' Gender Rate Gap

Fallen Chinese Official, at His Trial, Faces Accuser Who Set Scandal in Motion

By EDWARD WONG and JONATHAN ANSFIELD August 25, 2013

EU Closes Insurers' Gender Rate Gap

The EU's highest court declared illegal the widespread practice of charging men and women different rates for insurance, setting in motion an overhaul of how life, auto and health policies are written.

set in motion
Start something moving, give impetus to something, as in A press conference set the new project in motion. It is also put as set the wheels in motion, as in Let's set the wheels in motion for the new library wing. This idiom dates from about 1800. It was preceded by put in motion, which dates from the mid-1600s.