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Japanese Tea Ceremony.
Japanese tea ceremony began in Japan, but other countries and cultures have their own tea ceremonies as well.
No one person introduced the tea ceremony in Japan, but it is most associated with Sen Rikyu (also known as Sen no Rikyu).
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Japan became a modern industrialized power
People in Japan usually have a tea ceremony on special events - Japanese festivals or holidays. Japanese Tea ceremonies are also held daily at Japanese tea gardens - there are a few of them in Tokyo (see http://www.tokyo-top-guide.com/Japanese_Gardens.html). Admission fee to these Japanese tea gardens is very reasonable, and the tea ceremony is a shorter version of the traditional Japanese tea ceremony ritual. If you are coming as a tourist to Tokyo - the Okura hotel also holds a tea ceremony in a private room, this naturally costs more than the Japanese tea gardens.
Since I am Japanese, I will help answer 1 of the10 things. Japan is known for sushi.
No. Ireland is blocked by a continent on either side of Japan.
japan became a modern industrialized power
Japan became a modern industrialized power
The Japanese eat eel in the height of summer for extra energy.
Japan broadened it's sphere of influence to include to Korea