NEW YORK — After a year of numerous same-sex marriage victories, gay pride parades and celebrations attracted millions of gay, lesbian, bisexual and transgender people and their supporters.

New York’s Fifth Avenue became one giant rainbow on Sunday as thousands of participants waved multicolored flags while making their way down the street. Politicians including Mayor Bill de Blasio and Gov. Andrew Cuomo were among those walking along a lavender line painted on the avenue from midtown Manhattan to the West Village.

The parade marked the 45th anniversary of the Stonewall riots, the 1969 uprising against police raids that were a catalyst for the gay rights movement. The parade route passes The Stonewall Inn, the site of the riots.

As many as 1 million people packed the streets of the Chicago’s North Side for the first gay pride parade since Illinois legalized gay marriage last month.