The milestone has brought with it the WorldPride festival, a global event that organizers expect to bring millions of people to the city in June.

WorldPride’s opening ceremony is Wednesday, and its closing events are Sunday.

[Learn more about WorldPride, L.G.B.T.Q. news and history.]

Here is a guide to some of The Times’s coverage:

The Pride March: Staring at noon on Sunday, a two-mile march with thumping music, costumed dancers, politicians and floats will commence in Manhattan. It starts on Fifth Avenue by 26th Street, goes in front of the Stonewall Inn, turns north onto Seventh Avenue and ends by 23rd Street.

A competing procession, the Queer Liberation March and Rally, is being staged in the borough by people who say the other procession is too corporate and no longer speaks to the urgent needs of lesbian, gay, bisexual and transgender people.

[There are rival pride parades; one does not have corporate sponsors.]

Take a guided walking tour: The Times’s Pierre-Antoine Louis, a lifelong New Yorker, narrates this tour. It includes the poet Langston Hughes’s home, the Leslie-Lohman Museum for Gay and Lesbian Art, and the first home for homeless transgender youth, on East Second Street.