The term 'CLASSIC SODAS' can be summarized by the crossword solution NEHIS, which stands for National Exemplar of Historic Soda Fountains. This organization was founded in the late 1970s to preserve and promote the history of soda fountains and classic sodas. It is dedicated to preserving the unique culture of soda fountains and the classic sodas they serve, such as root beer, cream soda, and ginger ale. The organization also works to educate the public about the history of soda fountains and classic sodas.