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:
| School | Nickname | Location | Colors | Join Date |
| --- | --- | --- | --- | --- |
| Canton McKinley | Bulldogs | Canton | Red, Black | 2003.0 |
| GlenOak | Golden Eagles | Canton | Forest Green, Vegas Gold | 1975.0 |
| Hoover | Vikings | North Canton | Black, Orange | 1968.0 |
| Jackson | Polar Bears | Jackson Township | Purple, Gold | 1964.0 |
| Lake | Blue Streaks | Uniontown | Blue, Red, White | 1987.0 |
Question:
Name the least join date
Answer:
1964.0