Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Home team | Home team score | Away team | Away team score | Venue | Crowd | Date |
| --- | --- | --- | --- | --- | --- | --- |
| Hawthorn | 11.16 (82) | Richmond | 17.12 (114) | Princes Park | 13574.0 | 21 August 1976 |
| Collingwood | 20.20 (140) | Essendon | 12.17 (89) | Victoria Park | 19036.0 | 21 August 1976 |
| South Melbourne | 15.18 (108) | St Kilda | 10.6 (66) | Lake Oval | 12997.0 | 21 August 1976 |
| Melbourne | 22.18 (150) | Geelong | 16.9 (105) | MCG | 28130.0 | 21 August 1976 |
| North Melbourne | 10.15 (75) | Carlton | 18.16 (124) | Arden Street Oval | 26455.0 | 21 August 1976 |
| Footscray | 4.11 (35) | Fitzroy | 3.16 (34) | VFL Park | 15638.0 | 21 August 1976 |
Question:
What date was the game played at Princes Park?
Answer:
21 August 1976