When you start to see a list that was made to correspond to the year and the sum history and zodiac signs and age.
It displays the range of up to now from the Meiji first year of the sum history.
Quit the app and pressing the MENU button.
※ year of the "first year" of the sum history, actually overlaps with the final year of the previous era.
Example: the first year of Heisei and 1989 years substantially the same in 1989 (switched in the middle)
※ all of the value up to the point (when present) you start will be calculated automatically.