became a significant industrial contributor to the World War II effort, while the farms and fields surrounding Rochester provided food for the troops as well as the home front. To recognize specialized professional nature of its programs, in 1944, the Rochester Athenaeum and Mechanics Institute changed its name to The Rochester Institute of Technology. In 1904, R. T. French sent prepared mustard to the St. Louis World's Fair, where it was paired with another innovation — the hot dog — and became a hit. In the early 1900s, both George Eastman and Andrew Carnegie gave substantial sums to the University of Rochester. Eastman also donated the funds to establish the Eastman Dental Dispensary. In 1908, Francis Baker donated 120 acres (0.5 km2) for Genesee Valley Park, and Durand-Eastman Park opens, a gift of Henry Durand and George Eastman. In 1913, the Memorial Art Gallery on the University of Rochester's Prince Street Campus was founded. It was the gift of Emily Sibley Watson as a memorial to her son, architect James Averell. In 1918, the Erie Canal through Rochester was closed and abandoned after the Barge Canal opened, transiting Rochester through Genesee Valley Park. The Court Street Dam was also built in 1918 to raise the level of the river to that of the Barge Canal so no aqueduct or locks are necessary, but in so doing the Upper Falls and the Castelton Rapids were obliterated. By 1920, Rochester's population had reached 290,720, and it ranked 23rd largest in the United States. That year, the city purchased the abandoned Erie Canal lands inside city limits for use as a heavy rail mass transit and freight system. In 1921, the first Lilac Week occurred, celebrating Rochester's floral legacy in Highland Park. In 1922, Rochester's first radio station began broadcasting, and the Eastman Theatre opened, an adjunct to the Eastman School of Music of the University of Rochester. In 1925, George Eastman arranged a land swap with Oak Hill Country Club. The Oak Hill property, just west of Mt. Hope Cemetery on the east side of the Genesee River was given to the University of Rochester for its River Campus, and the country club moved to its present site in Pittsford. In 1925, the university opened its Medical School and Strong Memorial Hospital on Crittenden Road, and by 1927, general construction had begun on the River Campus. It was also in 1925 that