Next year is the 50th anniversary of the Stonewall uprising in 1969, when demonstrations after a police raid on a Greenwich Village bar helped kindle the modern gay rights movement.

The commemoration of such a seminal moment for lesbian, gay, bisexual and transgender people is expected to draw millions to New York next June for festivals, parades and cultural celebrations.

Amid it all, a surprising participant has gingerly emerged: the Yankees.

Baseball’s most famous franchise has stood by as welcoming gestures for L.G.B.T. sports fans have become increasingly common, whether pride nights at arenas and stadiums or the N.B.A. commissioner, Adam Silver, riding aboard a pride parade float. Major League Baseball had a float in the New York City Pride March for the first time this year, with the recently retired umpire Dale Scott, who is gay, aboard.

But faced with the potential embarrassment of being the only major league team never to have held a pride night at a game, the Yankees are developing a series of events next season tied to the celebration of the Stonewall riots, a team spokesman said, confirming an SNY report on Tuesday. He declined to provide any details because the plans were not close to being completed.