CREATE TABLE table_name_7 (date VARCHAR2, home VARCHAR2, visitor VARCHAR2)

What was the date of the game in which the home team was the Grizzlies and the visiting team was the Timberwolves?
SELECT date FROM table_name_7 WHERE home = "grizzlies" AND visitor = "timberwolves"
SELECT "date" FROM "table_name_7" WHERE "grizzlies" = "home" AND "timberwolves" = "visitor"