 The NY 25C designation was assigned in the mid-1930s to the portion of Marcus Avenue between Hillside Avenue (NY 25B) and the Northern State Parkway.In the 1940s, the northernmost portion of the route was realigned to follow Union Turnpike west into Queens, where it ended at Springfield Boulevard (then NY 25).The section of Union Turnpike from Kew Gardens to the Nassau County line had been converted from a narrow unpaved road to a paved multi-lane highway in the late 1930s ahead of the 1939 New York World's Fair.