Thomas Jefferson has been dropped from the syllabus, despite being one of the Founding Fathers who is credited with developing the idea that church and state should be separate.
The doctrine has become a cornerstone of US government, but some religious groups and some members of the Texas Education Board disagree, our correspondent says.
The board, which is dominated by Christian conservatives, voted nine-to-five in favour of adopting the new curriculum for both primary and secondary schools.
But during the discussions some of the most controversial ideas were dropped - including a proposal to refer to the slave trade as the "Atlantic triangular trade".
via news.bbc.co.uk
