As a point of comparison, the major college-entrance tests in the United States, the SATs and ACTs, clock in at under four hours each. Whereas for most South Korean students, the Suneung is the determining factor for where they go to college, in the United States, SAT or ACT test scores make up a smaller portion of the admissions decision—and there are hundreds of universities and colleges moving away from considering the scores at all.

Given the stakes, the preparation for and discussion surrounding the Suneung in South Korea can be, as Ye Dam Yi, a recent college graduate who works for a trade company in Seoul, described it, apocalyptic. “Most teachers emphasize that if we failed Suneung, the rest of our lives would be failure, because the test is the first (and last) step to our successful lives,” said Sina Kim, a 25-year-old currently looking for a job. The exam is seen as “the final goal and final determinant of our lives. We thought that if we successfully finish the test, then the bright future would automatically follow.”

The Suneung isn’t the only way to get into university, but it is the most common and respected one. The alternative Susi process, not unlike the U.S. formula, usually requires “a good GPA, extracurricular activities (recognition, test scores, etc.), and either an interview [or] essay test,” explained Ye Dam. Dongyoung Shin, a 36-year-old who recently completed her masters at Yonsei, entered university through this non-traditional path, and said there’s a stigma associated with it; college acceptance via the Susi—and not the Suneung—is seen as the easy way in.

South Korea’s modern-day testing fixation has evolved over centuries, according to Michael Seth, the author of Education Fever: Society, Politics, and the Pursuit of Schooling in South Korea. The Suneung has its roots in the civil-service exam that began in 10th-century Korea. Passing the exam and securing a job in the government guaranteed status. “Even if you weren’t attempting to enter into government service,” Seth said in an interview,“you wanted to be a degree holder to maintain the status of your family.” Informed by the special place Confucian scholars held in society, Seth explained, “education was a means to moral authority.”

The civil-service exam was abolished toward the end of the 19th century and, with the nation under Japanese colonial rule, Seth writes, “access to education beyond the elementary level was restricted as part of Korea’s subordinate status in the empire.” After the empire fell following World War II, illiteracy was widespread, with “less than 5 percent of the adult population [having] more than an elementary school education,” according to Education Fever. The only university in Korea at the time enrolled primarily Japanese students.

The modern form of the college-entrance exam came into being in the 1950s. And while the nation endured “political turmoil, economic chaos, and warfare,” Seth told me, it kept making progress in education. A large part of its success, he added, came from the state’s focused effort to raise its citizenry to a “shared standard of education” instead of focusing on its elite class, as had been the tradition before Japanese colonization. Within half-century after imperial rule ended, Seth writes, “90 percent [of students] graduated from high school. There were over 180 colleges and universities, and the proportion of college-age men and women enrolled in higher education was greater than in most European nations.”

Over the six decades of the modern-day Suneung’s existence, its nature, and how much it should be weighed in college admissions, has been subject to debate. But the one constant throughout has been the intense pressure on all students, who according to Seth prepare “from kindergarten till they’re a senior in high school.”