"  This is why we cannot judge isolated sentences presented to us, there is no 'right' or 'wrong' way, not knowing the rationale around (in other words, context)."

  That was I had meant, putting the pen to press it is impossible to say, yet if I had traveled last month, for instance, I (and the listener) would  know the time of both events. Knowing that, both the tenses could be used.   That´s why I pointed out the necessity of context around.  

  PP.