Apr.29
It's a National holiday in Japan. it is called Showa no Hi (Showa's Day).
Since today was the birth day of the Showa Emperor, it had been called Tennou Tanjo-Bi
(the Emperor's birthday). before he died in 1989.
After his death, this day was called the Greenery Day, because hi loved nature too much.
However, the Showa period(1926-1989) is impressed period for Japanese which was called turbulent period , and they requested the Government to chanege the name.
Because of that today was renamed Showa no Hi (Showa's Day) and the Greenery Day was moved to May 4.