this is the website which tells you what happened on your birthday. you may find it quite interesting. all you have to do is to select month, day and year and click what you would like to know (on earth, in the sky or i'm a martian).
自分の生年月日に何が起きていたのかを教えてくれるサイト。結構面白いかも。生年月日を選択し、何を知りたいのか（地球上で起こったこと、空、火星人）のうちのどれかをクリック。
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