SELECT "Date" FROM table_76207 WHERE "Region" = 'europe' AND "Catalog" = '74321 45851 2'
What Date has the Region Europe and a Catalog of 74321 45851 2?
CREATE TABLE table_76207 (
    "Region" text,
    "Date" text,
    "Label" text,
    "Format" text,
    "Catalog" text
)