YOU SAID:
There was once a ship
INTO JAPANESE
かつて船がありました
BACK INTO ENGLISH
There was once a ship
INTO JAPANESE
かつて船がありました
BACK INTO ENGLISH
Once upon a time there was a ship
INTO JAPANESE
昔々、船がありました
BACK INTO ENGLISH
Once upon a time there was a ship
That didn't even make that much sense in English.