Christian conservatives have reacted to California Governor Jerry Brown signing a controversial gay history bill into law.

Brown on Thursday signed the measure which mandates the inclusion of the historical contributions of gay, lesbian, bisexual and transgender Americans in the state's textbooks.

Starting as early as the 2013-2014 school year, the FAIR Education Act, sponsored by state Senator Mark Leno, a Democrat, requires the California Board of Education and local school districts to include the curriculum in their lesson plans.

The Rev. Louis Sheldon, chairman and founder of the Traditional Values Coalition (TVC), said the bill “molested” the minds of children.

“It is an outrage that Governor Jerry Brown has opened the classroom door for homosexual activists to indoctrinate the minds of California's youth, since no factual materials would be allowed to be presented. By signing SB 48 today, California's classrooms, textbooks and instructional materials will all become pro-homosexual promotion tools.”

“We are talking about molesting the minds of young impressionable youth, as young as kindergarten, with an agenda and message that is not age-appropriate and that is offensive to the values of a vast majority of California's families.”

Randy Thomassson of the Christian conservative group Save California added that children will be “forced” to admire gay people.

“The bill he [Brown] signed prohibits teachers and textbooks from telling children the facts that homosexuality has the highest rate of HIV/AIDS and other STDs, higher cancer rates, and earlier deaths,” Thomasson said in a statement. “These important facts about lifestyles children will being [sic] forced to admire will be omitted.”

“This revisionist history will actually make more children believe a lie – that homosexuality is biological, which it's not, and healthy, which it isn't.”