A new CNN poll finds that, for the first time, a majority of Americans believe that you can’t change your sexuality.

Fifty-six percent of about 515 poll respondents said they do not believe sexual orientation can be changed. In 2001, 45 percent of those responding to a CNN/USA Today/Gallup poll held that belief. In 1998, according to a CNN/Time poll, the number was 36 percent.

Other findings from a different May poll:

• 79 percent said that gays and lesbians should be able to serve openly in the military.

• 51 percent supported some legal protection for gay couples, with 24 percent supporting marriage and 27 percent supporting civil unions.

• 57 percent said gays and lesbians should have the right to adopt children.