CREATE TABLE table_69819 ("Date" TEXT, "Visitor" TEXT, "Score" TEXT, "Home" TEXT, "Decision" TEXT, "Attendance" FLOAT, "Record" TEXT)

Who was the visitor on march 21?
SELECT "Visitor" FROM table_69819 WHERE "Date" = 'march 21'
SELECT "Visitor" FROM "table_69819" WHERE "Date" = 'march 21'