This challenge is all about the Earthcache. January 10th is the 10th anniversary of the first one placed in Australia.
The tasks that must be; or have already been completed are easy-
1- Find an Earthcache in 6 different states and/or countries; Sooooo if you have found a cache in NH, MA, VT, Quebec, Brazil and Germany, you qualify. This is only an example of how to combine states and countries to qualify.
2- You must have logged a MINIMUM of 50 Earthcaches.
This can all be verified on your profile page.
To find this challenge, simply subtract the minimum number of Earthcache finds needed from both N and W coords.