When Governor Jerry Brown signed SB 48, a bill compelling California schools to teach LGBT history, into law last year, it was doubtless that the move would spark outrage among anti-gay activists.

Now an effort by said activists to overturn the law has fallen 54,000 signatures short of 500,000 required to get on the 2014 ballot.

The conservative, Sacramento-based Pacific Justice Institute had been working on gathering signatures for the Children Learning Accurate Social Science (CLASS) Act, which would repeal requirements that school instructional materials not discriminate based on gender, religion and sexual orientation.

"Placing a measure on the ballot through grassroots efforts alone has not been done in California in recent memory," said Pacific Justice Institute Chief Counsel Kevin Snider in a statement released on Tuesday. "Although history was against us, our conscience compelled the coalition to fight this battle rather than doing nothing."

This failure marks the third unsuccessful attempt by conservative groups to overturn the overturn the LGBT history law--efforts to get a similar measure on the June ballot as well as the upcoming November ballot also came up short.

The Associated Press reported last fall:

Organizers of the Stop SB48 campaign are telling would-be voters the new mandate would inappropriately expose young children to sex, infringe on parental rights and silence religion-based criticisms of homosexuality. Those are talking points successfully used by proponents of Proposition 8, the 2008 ballot measure that banned same-sex marriage in California.

But so far, Mormon and Catholic church leaders and conservative groups who spearheaded the Proposition 8 campaign have not joined the effort to qualify the gay history referendum for the June 2012 ballot, leaving less-experienced Christian conservatives to lead the charge without the organizational prowess and funding to hire paid signature gatherers.

Pacific Justice Institute's signature drive came under fire from LGBT advocates as well as many in the media, such as LA Weekly, which ran a regular feature highlighting famous members of the LGBT community.

Prior to the passage of SB 48, California had rules in place pushing schools to study the histories of under-represented groups based on characteristics like race and gender. SB 48 specifically added the sexual orientation to that list.

Even though the law took effect in January, most California school districts to have yet to implement it.

This most recent failure seems unlikely to put an end to the controversy over SB 48. "This campaign was a struggle to protect the children of our State," Pacific Justice Institute President Brad Dacus said in a statement. "While the failure to gather the necessary signatures may be a disappointment, giving up on the most vulnerable members of our society would be unforgivable."

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  • May 22, 1930

    Harvey Bernard Milk is born in Woodmere, New York

  • 1951 - 1955

    Milk served in the Navy. He was honorably discharged.

  • 1972- 1973

    Milk moves to the Castro and opens Castro Camera.

  • November 8, 1977

    Milk is elected to the Board of Supervisors for District 5 in his fourth run for elected office. He is the first openly gay man elected to public office in the United States.

  • November 27, 1978

    Dan White assassinates Milk and Mayor George Moscone at City Hall. That night, more than 30,000 people march from the Castro to City Hall and hold a candlelight vigil.

  • May 21, 1979.

    Dan White is convicted of voluntary manslaughter and sentenced to seven years in prison. Thousands of people throw rocks, break windows, and set police cars on fire around City hall. Later that evening, several officers in riot gear arrive at the Elephant Walk Bar on Castro Street and beat patrons at random. These incidents become known as the White Night Riots.

  • February 22, 2009.

    After being nominated for eight Academy Awards, including Best Picture, the film Milk wins Best Original Screenplay and Best Actor in a Leading Role (Sean Penn).

  • May 22, 2010

    First Annual Harvey Milk Day

  • April 2012

    Bob Filner, a Democratic San Diego congressman, proposes the U.S. Navy <a href=" http://www.huffingtonpost.com/2012/04/26/uss-harvey-milk-navy-ship_n_1456486.html" target="_hplink">name a ship after Harvey Milk. </a>