Also take a look at your category-eras. If you're using 2004, the way you have it isn't the way the CCG says to do it. By the way, in your second content, your 2000 has a space between the second and third zero.
The CCG says that you should set up the category-eras like below:
category-era-0 1900s
category-era-1 1910s
category-era-2 1920s
etc....
PS: your category-region should be set up the same way (eg. category-region-0 US)