I. Japan is a western name and 日本(Nippon or Nihon) means Origin of the Sun. (Sun rises from the Pacific East and falls to the Continetal West)

II. Japan has about 2000 years of history.

III. Ethnically 99.4% are Japanese.

IV. The Japanese Anthem, shortest in the world, was composed by a German.

V. お歳暮、お中元 Osebo, Ochugen
http://en.wikipedia.org/wiki/Ochugen
http://ja.wikipedia.org/wiki/%E6%AD%B3%E6%9A%AE
Chūgen (中元), also Ochūgen (お中元), is an annual event in Japan on July 15th when people give gifts to one’s superiors and acquaintances.

VI. 接待　Settai
http://ja.wikipedia.org/wiki/%E6%8E%A5%E5%BE%85
http://en.wikipedia.org/w/index.php?title=Settai&action=edit

VII. 遠慮 Enryou

http://www.reigisahou.jp/

VIII. 謙遜・謙譲 Kenson, Kenjō: Humbleness, Modesty

IX. 敬語（尊敬語、謙譲語｛謙遜語、丁重語｝、丁寧語、美化語）
Keigo, Japanese language honorifics:
A. Respectful language, sonkeigo;
B. Humble language, kensongo｛kenjōgo, teichōgo};
C. Polite language, teineigo;
D. word beautification, bikago
http://en.wikipedia.org/wiki/Japanese_honorifics

X. X (X-Japan) http://www.eXtasyRecords.co.jp

XI. 正座(正坐) Seiza
http://en.wikipedia.org/wiki/Seiza

XII. 節分の豆まき Mamemaki at Setsubun
http://en.wikipedia.org/wiki/Setsubun

XIII. フランシスコ・ザビエル （Francisco de Xavier or Francisvo de Gassu y Javier)
http://en.wikipedia.org/wiki/Francis_Xavier

XIV. お辞儀（おじぎ）Bowing in Japanese Societies
http://en.wikipedia.org/wiki/Bowing_%28social%29

XIIII. わび・さび Wabi-sabi (Not Wa-sabi!)
http://en.wikipedia.org/wiki/Wabi-sabi

XV. わさび　Wasabi (ok, here it is) ワサビ, 山葵
http://en.wikipedia.org/wiki/Wasabi

XVI. 和菓子 Wagashi (Mochis and Redbeans)
http://en.wikipedia.org/wiki/Wagashi

XVII. 茶道（さどう、ちゃどう）The Japanese tea ceremony (chadō or sadō, “the way of tea”) http://en.wikipedia.org/wiki/Japanese_tea_ceremony

XVIII. 禅 (ぜん, 禅宗) ZEN http://en.wikipedia.org/wiki/Zen_Buddhism#Zen_in_Japan

XIX. 和　Wa, Heart of Japan
(Japanese philosophy and culture of harmony, peace, balance)
http://en.wikipedia.org/wiki/Wa_%28Japanese%29

XX. 根回し Nemawashi
http://en.wikipedia.org/wiki/Nemawashi

XXI. よいしょ
http://zokugo-dict.com/38yo/yoisyo.htm

XXII. 本音と建前 Honne TO Tatemae (Honne and Tatemae)
http://en.wikipedia.org/wiki/Honne_and_tatemae

XXIX. Drinking and smoking age is 20, but Absent is legal here!

XXX. 吉原。Yoshiwara
http://en.wikipedia.org/wiki/Yoshiwara
http://yosiwarasaiken.net/

流しそば

うどん

銭湯・温泉

初詣

正月

お年玉

水鈴石

XXXX. We are the biggest religious whore in the whole wide world.

XXXXI. Japanese people aren’t Vegetarians, but we eat a lot of vegetables.

XXXXII. Japan is the world’s second largest economy (Currently, if you don’t count in EU).

XXXXIII. Tokyo is often referred as the largest metropolitan area in the world, with over 30 million residents. (Currently)