Over the past thirty years, startups have been prodigious job creators in this country.

FORBES: The Great Startup Slowdown

Over the past thirty years, no benefactor has contributed more to liberal causes.

NEWYORKER: Schmooze or Lose

We have to face the fact that the old so-called conservative movement in this country is a fractured mess that over the past thirty years has been often tone deaf, behind the curve tactically, and an abject failure from a policy standpoint.

FORBES: Marking The End Of An Era For Conservatives

On the job training is great but much has been learned over the past thirty or forty years about the cognitive biases (universal tendencies of thought) that can lead us astray.

FORBES: What Sandberg Should Have Done: Made the First Offer

From the Netherlands and Bosnia, to Algeria and Tunisia, to Pakistan and Afghanistan, and to Somalia and Nigeria, nationals of these countries have reported that over the past twenty to thirty years local Islamic traditions are being transformed and radicalized under intensifying Saudi influence.

CENTERFORSECURITYPOLICY: Center For Security Policy

Over the past three some years, the market has retraced almost exactly its proportions from thirty-five years ago, when the economy endured and then sort of got out of the nasty recession of 1973-75.

FORBES: The Dow Is Retracing the Stagflation Market