Original sentence: The name "circuit court" is also informally used to refer to the existing United States court of appeals.Those courts were officially known as United States circuit courts of appeals from their establishment in 1894 until their name was changed to United States courts of appeals in 1947
Edited sentence: The name "circuit court" is also informally used to refer to to today's court of appeals; those courts were officially known as United States circuit courts of appeals from their establishment in 1894 until their name was changed to United States courts of appeals in 1947