On Saturday, a “human phonebook” that wanted to reduce the number of classmates and friends, and a post containing text experiences that were reduced to the number of letters, gained an online consensus. The Union News on November 9, 2026 that a post covering the daily analogue and digital switch of the 1980s and 1990s was recently shared by the community and SNS.
The post linked Saturday 6th week classroom, friend home phone number memories, short-letter stamp compression, and so on, to “a difficult experience for generations to understand today.” The record of school cheating, low-wage arbitration, and Seaworld were also mentioned together, bringing back memories of schooling and early social life.
Toyo class is a period of gradual growth over the weekend.
Week 5 classes began on the 1st of the month in 2005 and expanded to the 2nd of the month in 2006.Saturday classes were introduced to national schools in the first half of the year, starting in the second half of the year in 2012.Saturday classes changed depending on the generation and school time.
Statistics Agency’s “Social Trends in Korea 2025” stated that week 5 classes started on the fourth Saturday Saturday in 2005 and expanded to second and fourth Saturday holidays in 2006.
Short letters and phone numbers were part of the contact method at the time.
Early text messages were limited to within 40 characters per letter. LGUPLUS’s SMS guide explains the standard for enterprise messaging as 80 bytes, and suggests that the text can send up to 40 characters with 2 bytes per letter.
Within these limits, searches, and mixing of symbols were widely used. Unlike storing and searching contacts on phones nowadays, asking for friends and family’s home phone numbers was also a routine means of contact. Short letters and number codes are why different memories come together in one post.
Professor at the Department of Consumer Economics, Yongzhou Destination, quoted in the Union News, said: “This means that society is changing so fast as certain generations are aging sooner than they are.”Toyo classes and short letters have been translated online as examples of how rapidly education and communication environments have changed beyond the individual’s memory.