What is special about December 24th in history?

  On December 24, 2003, the construction of "Bird's Nest" and "Water Cube" both started. Have you ever visited these two places?

  On December 24, 1818, the British physicist Joule was born. Do you remember the definition of "Joule" in physics books?

  Where were you on December 24th last year?

Who is with you by your side?

Does anyone have a birthday today?

Share it in the comment area!