Date in year · 1972 · The 1970s
September 9, 1972
On September 9, 1972, in Kentucky's Mammoth Cave National Park, a Cave Research Foundation exploration and mapping team discovers a link between the Mammoth and Flint Ridge cave systems, making it the longest known cave passageway in the world. The year's #1 song was "The First Time Ever I Saw Your Face" by Roberta Flack. Aaron Lewis, Conchita Martínez, Tracy K. Smith would arrive in the same year.
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1972
1970s