What is the Date at memorial stadium minneapolis, mn with an Attendance of 20,000, and a Result of w52-0?
CREATE TABLE table_34940 (
    "Date" text,
    "Opponent#" text,
    "Site" text,
    "Result" text,
    "Attendance" text
)
SELECT "Date" FROM table_34940 WHERE "Site" = 'memorial stadium • minneapolis, mn' AND "Attendance" = '20,000' AND "Result" = 'w52-0'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the Date at memorial stadium minneapolis, mn with an Attendance of 20,000, and a Result of w52-0? ### Input: CREATE TABLE table_34940 (
    "Date" text,
    "Opponent#" text,
    "Site" text,
    "Result" text,
    "Attendance" text
) ### Response: SELECT "Date" FROM table_34940 WHERE "Site" = 'memorial stadium • minneapolis, mn' AND "Attendance" = '20,000' AND "Result" = 'w52-0'