CREATE TABLE table_36779 ("Date" TEXT, "Visitor" TEXT, "Score" TEXT, "Home" TEXT, "Decision" TEXT, "Attendance" FLOAT, "Series" TEXT)

What date was the game where the visiting team was philadelphia?
SELECT "Date" FROM table_36779 WHERE "Visitor" = 'philadelphia'
SELECT "Date" FROM "table_36779" WHERE "Visitor" = 'philadelphia'