CREATE TABLE table_38642 ("Tie no" TEXT, "Home team" TEXT, "Score" TEXT, "Away team" TEXT, "Attendance" TEXT)

What was the date of the game that was played against the away team of York City?
SELECT "Attendance" FROM table_38642 WHERE "Away team" = 'york city'
SELECT "Attendance" FROM "table_38642" WHERE "Away team" = 'york city'