Lesson plan
Year 2011 problem
The year 2011 problem or the Y1C problem ( ) was a potential problem involving computers and computer systems in Taiwan in the night of 31 December 2010 and 1 January 2011. Similar to the year 2000 problem faced by much of the world in the lead-up to 2000, the year 2011 problem is a side effect of Taiwan's use of the Republic of China calendar for official purposes. This calendar is based on the founding of the Republic of China in 1912 (year 1), so the year 2011 on the Gregorian calendar corresponds to year 100 on Taiwan's official calendar, which posed potential problems for any program that only treats years as two-digit values.
Article summary
The year 2011 problem or the Y1C problem ( ) was a potential problem involving computers and computer systems in Taiwan in the night of 31 December 2010 and 1 January 2011. Similar to the year 2000 problem faced by much of the world in the lead-up to 2000, the year 2011 problem is a side effect of Taiwan's use of the Republic of China calendar for official purposes. This calendar is based on the founding of the Republic of China in 1912 (year 1), so the year 2011 on the Gregorian calendar corresponds to year 100 on Taiwan's official calendar, which posed potential problems for any program that only treats years as two-digit values.
Key claims
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.