CREATE TABLE table_59484 ("Series" TEXT, "Platform" TEXT, "Japanese Release Date" TEXT, "North American Release Date" TEXT, "European Release Date" TEXT, "Australia Release Date" TEXT)

What is North American Release Date, when Japanese Release Date is '2011-06-23'?
SELECT "North American Release Date" FROM table_59484 WHERE "Japanese Release Date" = '2011-06-23'
SELECT "North American Release Date" FROM "table_59484" WHERE "Japanese Release Date" = '2011-06-23'