30th
On Hunkering:
This year marks the 50th anniversary of one of the greatest contributions by the state of Arkansas to the American way of life.
In 1959, fraternity brothers at the University of Arkansas were suffering from a shortage of chairs. In protest, they took to “hunkering,” or squatting. It’s a fine example of American ingenuity, of making do with less, or in this case, making do with nothing at all.
Hunkering quickly became a fad that spread to other Southern campuses, warranting coverage in Time magazine, where the Southern squatters showed themselves fine examples of collegiate style.
As in yoga, there were different names depending on what you were doing while hunkering. According to Time, squatting while drinking beer is called Hunkerin’ and Hookin’. Time does not disclose the term for hunkering while eliminating beer.
When studying, it’s called the Horace Hunker. Cigarette-smoking piano players did the Hoagy Hunker. And a really nice one, on dates, it’s the 35-cent Hamburger Hunker:

Found with help from Andrew J, Ivy Style, and A Continuous Lean.