More than 200 gay and lesbian couples are set to “marry” in Cleveland, Ohio.

The mass wedding, which is sponsored by gay rights groups Equality Ohio and GetEQUAL Ohio, will take place at 11AM on Saturday, March 24 in front of Willard Park's Free Stamp sculpture, just blocks from the Rock and Roll Hall of Fame and Museum, the Plain Dealer reported.

The City of Cleveland's domestic partnership registry is open to gay couples. The number of couples entering a partnership, which offers few protections, was not known.

Ohio voters in 2004 overwhelmingly approved a constitutional amendment defining marriage as a heterosexual union.

Gay marriage supporters last month submitted nearly 1,800 signatures to the office of Ohio Attorney General Mike DeWine, the first step in putting the issue back on the ballot this fall or next. However, DeWine on Friday announced that he had rejected the petition's first 1,000 signatures.

“The more people see what same-sex couples look like and who they are, it enables us to change people's minds about stereotypes they might have about these couples,” Ed Mullen, executive director of Equality Ohio, told the paper.

“It's more effective than shouting through a bullhorn, 'You're oppressing us,'” he added. “If you don't put people on the defensive from the outset, they might be more willing to listen and learn.”

UPDATE: Attorney General Mike DeWine says petition summary is flawed.