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:
| Date | City | Venue | Member | Performance | Notes |
| --- | --- | --- | --- | --- | --- |
| 15 January | Dublin | RTÉ Studios | Brian & Roger | (1) "We Will Rock You"\n(2) "We Are the Champions" | The Late Late Show |
| 31 January | Dublin | The O2 | Brian | (1) "Bohemian Rhapsody" | Matinee and Evening performances. Roger attended but did not perform. |
| 10 May | London | Dominion Theatre | Brian & Roger | (1) "Bohemian Rhapsody" | 8th anniversary. |
| 3 September | Utrecht | Beatrix\nTheatre | Brian | (1) "Bohemian Rhapsody" |  |
| 4 September | London | Dominion Theatre | Brian | (1) "Bohemian Rhapsody" | Matinee and Evening performances |
| 12 September | Stockholm | Cirkus Arena Restaurang | Brian | (1) "Bohemian Rhapsody" |  |
| 21 October | Berlin | Theater des Westens | Brian | (1) "Bohemian Rhapsody" |  |
Question:
when was the first tour date of 2010?
Answer:
15 January