Greenery Day
present observation greenery day みどりの日 midori hi public holiday japan stem celebration birthday emperor shōwa hirohito lived april every year shōwa era following ascension emperor akihito chrysanthemum throne name holiday changed birthday emperor greenery day officially name suggests day commune nature thankful blessing day renamed greenery day acknowledge controversial wartime emperor love plant without directly mentioning name however practice seen another day expands japanese golden week vacation greenery day moved may april changed shōwa day accordance revision law pertaining public holiday shōwa emperor reigned year week may became symbol japan new constitution country golden week japan world environment day