TOKYO, May 13 (Xinhuanet) -- Japan's Parliament on Friday approved a bill to designate a holiday named after Emperor Hirohito, part of whose reign experienced Japan's aggression in Asia before and in the World War II.

    The House of Councillors passed the bill to rename April 29, the late emperor's birthday, Showa Day, named after the title of his reigning era. The new name will come into effect in 2007.

    The bill, proposed by the ruling bloc, cleared the lower house on April 5.

    Emperor Hirohito came to the throne in 1926 and died in 1989. The day was known as the Emperor's birthday before being changed to the Greenery Day following his death as the emperor had a keen interest in biology and botanical studies.

    The legislation will shift Greenery Day to May 4, also a national holiday, sandwiched between Constitution Day on May 3 and Children's Day on May 5.

    The bill has been shelved for several years in consideration of reactions at home and abroad. After the W.W.II, Emperor Hirohito was immune from taking responsibility. Yet, Japan's post-war constitution deprives the emperors of their power by recognizing them as the nation's symbol rather than the head of state.

    The ruling coalition -- the Liberal Democratic Party and the New Komeito party -- and the main opposition Democratic Party of Japan voted for the bill, while the two other opposition parties --the Japanese Communist Party and Social Democratic Party -- opposed the move. Enditem