usher

usher     [Uhsh-er] 

verb.  cause or mark the start of something new

"The grand alliance of the Second World War was far from a cozy gathering; Stalin, Churchill, and Roosevelt represented fervently opposing views of the world. They joined forces to stave off Hitler, who rose to power in a Europe weakened by prolonged war, political vacillation, and economic uncertainty. In the end, they prevailed, ushering in the world order in which, with all its flaws, we have lived with ever since."

"The new Samsung CEO helped usher in Knox, the security service intended for business users, and Samsung Pay, which lets people pay at the register with their smartphone."

"The railroads ushered in an era of cheap mass travel."