Simplify the following text for a Grade 11 native English-speaking person.
Original: The term classical liberalism was applied in retrospect to distinguish earlier nineteenth-century liberalism from the newer social liberalism . The phrase classical liberalism is also sometimes used to refer to all forms of liberalism before the twentieth century , and some conservatives and libertarians use the term classical liberalism to describe their belief in the primacy of economic freedom and minimal government .
Simplified: Classical liberalism is a type of liberalism .