Actually, what is considered a "liberal" today would have been considered an anarchist in the 1960s. What is considered a "conservative" today would have been considered a liberal in the 1960s.
"The whole modern world has divided itself into Conservatives and [liberals]. The business of [liberals] is to go on making mistakes. The business of Conservatives is to prevent mistakes from being corrected." -- G.K. Chesterton
(The original quote called them "progressives", but progressives simply started calling themselves liberals when the progressive label became unpopular.)