NEW YORK -- The WNBA is launching a campaign to market specifically to the LGBT community, a move that makes it the first pro league to specifically recruit gay, lesbian, bisexual and transgender fans to its games.

With the campaign, the WNBA is capitalizing on what it has quietly known for years: The community makes up a significant portion of its fan base. The difference now is that the league is talking about it publicly and making it a deliberate part of its marketing strategy.

The effort, which begins with the launch of a website Wednesday, includes having teams participate in local pride festivals and parades, working with advocacy groups to raise awareness of inclusion through grassroots events, and advertising with lesbian media. A nationally televised pride game will take place between Tulsa and Chicago on June 22. All 12 teams also will have some sort of pride initiative over the course of the season.

"For us it's a celebration of diversity and inclusion and recognition of an audience that has been with us very passionately," WNBA president Laurel Richie said. "This is one of those moments in the 'W' where everybody comes together."

It has taken the league 18 years to take the step, although it had discussions about the possibility previously. Teams have done some promotion locally, sponsoring booths at gay pride events and hosting groups at games.

"We embrace all our fans, and it's a group that we know has been very, very supportive. I won't characterize it as 'Why did it take so long?' For me it's been we've been doing a lot of terrific initiatives. The piece that's different this year is unifying it," Richie said.

Before launching the campaign, the league took a close look at its fan base. It commissioned a study in 2012 that found that 25 percent of lesbians asked watch the league's games on TV while 21 percent have attended a game.

Rick Welts, who was the executive vice president and chief marketing officer of the NBA when the WNBA started in 1997, said that when the league began, executives figured the fan base would be a carryover from the NBA.

"We guessed very wrong on that," said Welts, who now is the president and chief operating officer of the Golden State Warriors and became the highest-ranking executive in men's sports to publicly acknowledge he's gay in 2011. "Maybe we should have known better. I think from its outset, the WNBA attracted a fan with different interests than our profile of an NBA fan.

"I remember sitting in a few meetings where we had really interesting, thoughtful discussions of: Should we be proactive marketing to the LGBT community? What does that say if we do? We certainly didn't want to position the league of being exclusionary to anyone. What were we saying if we did it more proactively? Society and sports culture is very different today than it was back then. Teams were trying to figure out the right thing to do."

Brittney Griner, who is one of a handful of WNBA athletes who have publicly identified themselves as lesbian, was happy the league was embracing the community. Griner, who was the No. 1 pick by the Phoenix Mercury in the 2013 draft, plans on wearing rainbow-colored shoes during the month of June in support of the initiative.

"I'm so glad that we're finally making a push to the LGBT community, who is a strong supporter of the WNBA," said Griner, who served as grand marshal of the Phoenix Pride parade last season. "Our league being the first to make that push and bring more attention to it is great. We'll pave the way and show it's fine and there's nothing wrong with it. More sports need to do it. It's 2014; it's about time."

The league's campaign comes after a wave of recent announcements from players who are identifying themselves publicly as gay. NBA player Jason Collins became the first player in men's professional basketball to come out and played with the Nets. Former Missouri player Michael Sam, who came out in print and televised interviews earlier this year, was drafted in the seventh round by the St. Louis Rams. And Derrick Gordon, a UMass basketball player, recently described his experience as a gay Division I player.

That helps make the timing for the WNBA's decision right, said Robert Boland, academic chair of the sports management program at NYU's Tisch Center.

"Sports has a natural hesitance to embrace highly controversial issues. I think we've lived through a period where sport was nonpolitical. We're in a different era now," he said.

"This is a group where there is a natural affinity and marketing affinity. It's a recognition of where the world is today. I'd be shocked if there was any backlash."

Rebecca Lobo, who played in the league for six seasons and has been a broadcaster for the past decade, including for ESPN, has seen a change from when the league began in 1997.

"It's culturally more acceptable now than it was when it first started," she said. "The league has been around for so many years they can do these sort of things without worrying about what some people might think."

It wasn't always that way.

"For a long time, they were happy to have those lesbians fill those seats in the stands but not willing for a long time to embrace the fan base," said Pat Griffin, professor emeritus in the social justice education program at the University of Massachusetts Amherst. "I attribute that to the homophobia, fear that somehow acknowledging the fan base would encourage other fans not to go to games. What they've learned is that the fan doesn't keep other people from going to games."