Main events scheduled for Thursday, June 23

Main events scheduled in Japan for Thursday, June 23: -- Okinawa to mark 77th anniversary of end of Battle of Okinawa during World War II. -- Nationwide department store sales data for May to be released by Japan Department Stores Association at 2:30 p.m. -- First birthday for twin giant pandas Xiao Xiao and Lei Lei born at Tokyo's Ueno Zoological Gardens.