Table:
text: 1956 New York Giants season
Schedule
Schedule
Week Date_ Opponent Result_ Attendance
1 September 30, 1956 at San Francisco 49ers W 38–21 41751
2 October 7, 1956 at Chicago Cardinals L 35–27 21799
3 October 14, 1956 at Cleveland Browns W 21–9 60042
4 October 21, 1956 Pittsburgh Steelers W 38–10 48108
5 October 28, 1956 Philadelphia Eagles W 20–3 40960
6 November 4, 1956 at Pittsburgh Steelers W 17–14 31240
7 November 11, 1956 Chicago Cardinals W 23–10 62410
8 November 18, 1956 at Washington Redskins L 33–7 26261
9 November 25, 1956 Chicago Bears T 17–17 55191
10 December 2, 1956 Washington Redskins W 28–14 26261

Question: What is the highest week for the day of October 21, 1956 for the 1956 New York Giants season?