Taekwondo Founder General Choi Hong Hi last April 11, 1955 will be South Korea's self-defense taekwondo rule that, and also create Internetional Taekwon-Do Federation in 1966.

跆拳的始创人崔泓熙将军在一九五五年四月十一日终于将韩国的自卫术统治称跆拳道，并于一九六六创立国际跆拳道联盟。

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In the Netherlands, KPN saw a surge in adoption of the free WhatsApp messaging app from 0% of Hi's Android phone users in August 2010 to 85% in April 2011.

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