LEVITTOWN, NY — The Levittown School District is coming under fire from parents who are upset that the district officials have decided to remove any mentions of holidays from the school's 2017-18 calendar. The printed calendar, which was recently mailed to homes in the district, intentionally does not name any holidays and simply marks the days children have off.

"Due to the number of holidays celebrated and the fact that our schools are closed on some and open on others, it was decided to eliminate all references to holidays and simply indicate the days schools are closed in the printed calendar," the district wrote on its website. "In making this decision, we were also mindful of the risk of accidentally omitting any holidays." Watch: Long Island School District Removes Holiday Names From Calendar

The district added that its online calendar, which can be viewed here, marks all of the holidays by name. Some parents, however, are not pleased with the district's decision.

"I think it's terrible and disgusting," one district resident wrote on Facebook. "The school should be ashamed of themselves."

Another resident wrote on the Levittown Patch Facebook page, "How sad that political correctness has whitewashed even a school calendar!"