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:
| Name | Circuit | Date | Winning driver | Winning constructor | Report |
| --- | --- | --- | --- | --- | --- |
| Tigullio Circuit | Tigullio | 13 April | Tazio Nuvolari | Bianchi | Report |
| Targa Florio | Madonie | 27 April | Christian Werner | Mercedes | Report |
| Coppa Florio | Madonie | 27 April | Christian Werner | Mercedes | Report |
| Belfiore Circuit | Belfiore | 4 May | Antonio Masperi | Bianchi | Report |
| Perugina Cup | Perugia | 18 May | Emilio Materassi | Itala | Report |
| Savio Circuit | Ravenna | 23 May | Enzo Ferrari | Alfa Romeo | Report |
| Polesine Circuit | Polesine | 1 June | Enzo Ferrari | Alfa Romeo | Report |
| Cremona Circuit | Cremona | 9 June | Antonio Ascari | Alfa Romeo | Report |
| Coppa Acerbo | Pescara | 13 July | Enzo Ferrari | Alfa Romeo | Report |
| Autodrome Cup | Miramas | 13 July | Martín de Álzaga | Sunbeam | Report |
| Coppa Montenero | Montenero | 17 August | Renato Balestrero | OM | Report |
| Mugello Circuit | Mugello | 31 August | Giuseppe Morandi | OM | Report |
| San Sebastián Grand Prix | Lasarte | 27 September | Henry Segrave | Sunbeam | Report |
| Champions Match | Montlhéry | 12 October | Ernest Eldridge | FIAT | Report |
| GP de l'Ouverture | Montlhéry | 19 October | J. G. Parry-Thomas | Leyland-Thomas | Report |
| Garda Circuit | Salò | 9 November | Guido Meregalli | Diatto | Report |
Question:
What date was the Tigullio Circuit?
Answer:
13 April