Why was clemency trending last week?
an independently run but tax-supported K-12 public school created with a different educational philosophy and curriculum than other schools in the area
Charter schools are often founded as magnet schools or for special educational needs.
older uses refer to schools in Ireland begun 1733 by the Charter Society to provide Protestant education to poor Catholic children. Modern use in U.S. began c.1988, as an alternative to state-run public education.