WHEN A ANGEL APPEARS ON YOUR SCREEN PRESS A AND C FOR LIKE 5 SECONDS AND A EGG WILL APPEAR ON THE SCREEN WHEN THE EGG HATCHES GO TO HISTORY AND THERE WILL BE YOUR DEAD TAMA IN IT'S LAST STAAGE SIMPLE AS THAT
P.S. IF YOU EVER RESET YOUR HISTORY LIST WILL BE EMPTY
History is only to be used for a memorial of a previous Tama that has died.
To get this Tama in your history when the angel is still on the screen press A and C and a new egg should appear. The only way this Tama will appear in history is if the Tama that hatches gets the same name as the one that died.
Then you will be able to view that Tama in history, it's age, weight, gender, and name.