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- 1975 January
- The founder opened Jong-am Class
- 1976 July
- Korea Gongmoon Math Center opened
- 1986 December
- Daekyo Co., Ltd. founded
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- 1987 September
- Daekyo membership exceeded the 100,000 mark
- 1989 July
- Daekyo held the first Math Olympiad for Children
- 1991 February
- Daekyo membership exceeded the 500,000 mark
- August
- L.A.-based Daekyo America founded
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- 1992 January
- Daekyo Culture Foundation established
- 1993 June
- Daekyo membership surpassed the one million mark
- October
- Noonnoppi Awards for Children’s Books established
- 1995 December
- Daekyo moved to Noonnoppi Boramae Center, the new headquarters building
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- 1997 March
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- Daekyo Hongkong Inc. founded
- Noonnoppi Women’s Badminton Team formed
- May
- Daekyo Canada founded
- 1999 June
- Noonnoppi membership surpasses the two million mark
- 2000 January
- Singapore franchise opened
- June
- Noonnoppi Love Team created
- November
- New Zealand franchise opened
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- 2002 February
- UK franchise opened
- July
- Australia franchise opened
- September
- Sobics, a brand for infants/toddlers, developed
- October
- Beijing Daekyo Skills Learning Co., Ltd. established
- November
- Kangaroos women’s soccer team formed
- December
- Philippine franchise opened
- 2003 April
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- E. nopi, Daekyo’s overseas brand, launched
- Hawail franchise opened
- May
- Soluny (English language forum/reading forum) launched
- June
- Malaysia franchise opened
- August
- Shanghai & Daekyo Consulting Co., Ltd. established
- September
- Tianjin office of Shanghai & Daekyo Consulting Co., Ltd. opened
- October
- Indonesia franchise opened
- 2004 February
- Daekyo listed on the Korea Stock Exchange
- June
- Sobics Headquarters launched
- 2005 May
- Chairman Young-joong Kang assumed Chairman-ship of Badminton World Federation
- September
- CAIHONG Chinese launched
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- 2006 July
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- Daekyo celebrates 30th anniversary
- Fermatedu Co., Ltd. acquired
- 2007 January
- Daekyo, selected as official Korean administrator of Chinese Test for Young Learners (YCT)
- February
- Daejeon Noonnoppi Center opened
- June
- Established the Bongam Institute, an educational foundation
- July
- Opened the first Noonnoppi Learning Center
- August
- Opened the Daekyo Vietnam (Franchise)
- October
- Grand Opening of Daekyo HRD Center
- 2008 May
- Daekyo honored for 5th straight year at 2008 Korea Consumers’ Most Trusted Corporation Awards, held by Korea Consumers Forum
- November
- Daekyo honored at 16th Customer Satisfaction Management Awards, by Korea Management Association Consulting
- December
- Contract for Dream Start program signed with Ministry of Health, Welfare, and Family Affairs
- 2009 February
- Educational R&D Institute opens Daekyo Counseling Center
- 2010 July
- Chairman Young-Joong Kang published autobiography, "Life is learning.“
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- 2011 January
- Received the 2011 Consumers’ Choice Award for Best Advertisement.
- April
- Established and awarded the first Self-directed Learning Scholarship.
- June
- Signed the introduction of smart mobile with SK telecom.
- 2012 January
- Recognized as the first CCMS-accredited company in the education service sector.
- February
- Creative first-hand learning service “Dream Mentor” launched
- July
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- Launched publishing brand for preschoolers and school children “Ggumdal.”
- Global brand “E.nopi” rebranded as “Eye Level.”
- November
- Received 2012 Company and Youth Grand Prize in the CSR Festival of Korea with its Noonnoppi Dream Project.
- 2013 March
- 300th Daekyo Firstclass opened
- April
- Recognized as an high-performing customer call center in the education sector by KSQI for six consecutive years.
- May
- Received the 2013 Transparent Accounting Awards.
- July
- Changed the CI of Daekyo Group and declared its vision.
- August
- Daekyo Eye Level School in Kenya, Africa opened.
- October
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- Noonnoppi BI changed.
- 600th Noonnoppi Learning Center opened.
- 2014 January
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- Received Korea Customer Satisfaction Management Awards for five years in a row.
- May
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- Chairman Young-Joong Kang appointed as the Honorary Vice-President of BWF.
- September
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- Signboard hanging ceremony of ‘Caihong Confucius Institute’ held.
- 2015 August
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- 700th Noonnoppi Learning Center opened.
- Daekyo India founded.
- October
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- November
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- Daekyo Eye Level School in Vietnam opened.
- 2016 July
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- Daekyo celebrates 40th anniversary.
- 2017 December
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- Daekyo was recognized as the Korean World-class Product Award 2017 by Minister of Knowledge Economy.
- 2018 January
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- Received the Parents’ Choice Awards on Excellence in Education Brand for 13 consecutive years.
- February
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- Eye Level-Daekyo India Pvt. Ltd received Indian Education Awards 2018 for Best innovative after school model.
- Recognized as one of the Korea’s Most Admired Companies for 2018 for 8 consecutive years.
- March
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- Noonnoppi recognized as No.1 in Korea Brand Power Index for 20 consecutive years.