Hashiversary achievement

alternate name suggestion: Geohashiversary achievement

Award yourself this achievement for geohashing on the day of year of your first expedition (successful or not, but you ought to have written a report about it by now) in any of the following years.

If you happened to visit your hash on the 29th of February, you will share the ill fate of many unlucky children and only be able to claim it every four years. In contrary to those children, you had a choice. Well, now that we have this achievement at least.

Ribbon suggestion

still needs a better wording, imo

This user earned the Hashiversary achievement by visiting a hash point exactly on the day of her first expedition.

with some parameters set:

This user earned the 5th Hashiversary achievement by visiting a hash point in the 5th year after the day of his first expedition.