The Nats clinched a winning record for the first time since coming to D.C. Heck, it’s Washington baseball’s first winning record since 1969. The oldest National on the active roster, Mark DeRosa, wasn’t even born until 1975, six years after The Post went nuts with this George Minot Jr. lede on Sept. 27, 1969:

The Potomac flowed with champagne, Robert E. Short lowered his admission prices, Ted Williams hugged the writers and the Washington Senators have their first winning season in the memory of many a man.

Lee Maye busted a four-run home run over RFK Stadium’s right-field fence last night and delivered a momentous victory to Washington as the Senators whipped the Cleveland Indians, 4-1.

Seven games over .500 with five to play, the Senators are assured of a successful year, an impossible dream after last season’s 65-96 finish.

Many in the crowd of 6,727 were unborn when the team last reached such an historic milestone. Not since 1952, when Washington won two more than it lost, have the Senators ended on the winning side of the standings.

Thus inspired, a few images from Monday’s win, starting with the celebrating kids above. ‘Tis a level of joy not often displayed by D.C.’s young and impressionable sports fans in recent years.

Here is the aftermath of the game’s final pitch. Tyler Clippard fist-pumped. Kurt Suzuki fist-pumped. The umpire fist-pumped. That mustachioed man who is always behind home plate fist-pumped. And two Cubs fans above the Dierks Bentley sign covered their heads in agony.