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:
| Year | Competition | Date | Location | Result |
| --- | --- | --- | --- | --- |
| 1969.0 | World Group, 2nd Round | 22 May | Athens | W/O |
| 1968.0 | World Group, 2nd Round | 23 May | Paris | Loss |
| 1968.0 | World Group, 1st Round | 21 May | Paris | Win |
| 1967.0 | World Group, 1st Round | 07 Jun | Berlin | W/O |
| 1966.0 | World Group, 2nd Round | 12 May | Turin | Loss |
| 1966.0 | World Group, 1st Round | 10 May | Turin | W/O |
Question:
On which date was there a win?
Answer:
21 May