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 | Country | Venue | Attendance |
| --- | --- | --- | --- | --- |
| July 20, 2007 | Sault Ste. Marie, Michigan | United States | Kewadin Casino | 10,000 |
| July 21, 2007 | Cadott, Wisconsin | United States | Cadott Rock Fest | 35,000 |
| July 25, 2007 | Anaheim, California | United States | Cisco Customer Appreciation Event | 1,000 |
| July 27, 2007 | San Jacinto, California | United States | Soboba Casino Arena | 3,500 |
| September 15, 2007 | Whistler, British Columbia | Canada | Blackcomb Mountain | Canceled |
| October 26, 2007 | Paradise, Nevada | United States | Mandalay Bay Resort | 1,500 |
Question:
When is  Cadott Rock Fest taken place?
Answer:
July 21, 2007