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:
| Team | Outgoing manager | Manner of departure | Date of vacancy | Replaced by | Date of appointment | Position in table |
| --- | --- | --- | --- | --- | --- | --- |
| Bayer 04 Leverkusen | Michael Skibbe | Sacked | 30 June 2008[ citation needed ] | Bruno Labbadia | 1 July 2008[ citation needed ] | Pre-season |
| FC Bayern Munich | Ottmar Hitzfeld | End of contract | 30 June 2008 | Jürgen Klinsmann | 1 July 2008 | Pre-season |
| Borussia Dortmund | Thomas Doll | Resigned | 30 June 2008[ citation needed ] | Jürgen Klopp | 1 July 2008[ citation needed ] | Pre-season |
| Hamburger SV | Huub Stevens | End of contract | 30 June 2008 | Martin Jol | 1 July 2008 | Pre-season |
| FC Schalke 04 | Mike Büskens & Youri Mulder | Stepped down to assistant position | 30 June 2008 | Fred Rutten | 1 July 2008 | Pre-season |
| Borussia Mönchengladbach | Jos Luhukay | Sacked | 5 October 2008 | Hans Meyer | 18 October 2008 | 18th |
| VfB Stuttgart | Armin Veh | Sacked | 23 November 2008 | Markus Babbel | 23 November 2008 | 11th |
| FC Schalke 04 | Fred Rutten | Sacked | 26 March 2009 | Mike Büskens , Youri Mulder and Oliver Reck | 1 April 2009 | 8th |
| FC Bayern Munich | Jürgen Klinsmann | Sacked | 27 April 2009 | Jupp Heynckes | 27 April 2009 | 3rd |
| Arminia Bielefeld | Michael Frontzeck | Sacked | 17 May 2009 | Jörg Berger | 19 May 2009 | 16th |
Question:
What is the date of appointment of outgoing manager fred rutten, who had a sacked manner of departure?
Answer:
1 April 2009