>>>Just remember Arthur Clarke's words: "Any sufficiently advanced technology is indistinguishable from magic". In you were transported back to ancient times, given today's knowledge and technology, almost any gadget you could demonstrate could label you as a deity with supernatural powers. Does that prove you are a God? No.
>>>But they would believe it.
>>
>>OTOH, if your time warp machine had a faulty Pentium chip in it, and you landed in a wrong century, you'd be burned as a witch...
>
>A little OT, but do you remember that scene in "Somewhere in Time" staring Christopher Reeves? A college senior is giving his final play in college, and after the curtin call a little old lady comes up to him, hands him a pocket time piece and says "Come back to me!".
>
>Five years later he has writers block and goes on vacation. At a hotel he sees a portrait of a beautiful lady and falls in love with her. In doing research he discovers she is that little old lady who gave him the watch five years before. So, he hops back in time and in gives the watch back to her.
>
>This points out the particle paradox of time travel into the past. Where did the watch come from?

A shop? :)

I think a proper quote is due, from The Master and his "Restaurant at the end of the Universe":

"One of the major problems encountered in time travel is not that
of accidentally becoming your own father or mother. There is no
problem involved in becoming your own father or mother that a
broadminded and well-adjusted family can't cope with. There is
also no problem about changing the course of history - the course
of history does not change because it all fits together like a
jigsaw. All the important changes have happened before the things
they were supposed to change and it all sorts itself out in the
end.

The major problem is quite simply one of grammar, and the main
work to consult in this matter is Dr Dan Streetmentioner's Time
Traveller's Handbook of 1001 Tense Formations. It will tell you
for instance how to describe something that was about to happen
to you in the past before you avoided it by time-jumping forward
two days in order to avoid it. The event will be described
differently according to whether you are talking about it from
the standpoint of your own natural time, from a time in the
further future, or a time in the further past and is further
complicated by the possibility of conducting conversations whilst
you are actually travelling from one time to another with the
intention of becoming your own father or mother.

Most readers get as far as the Future Semi-Conditionally Modified
Subinverted Plagal Past Subjunctive Intentional before giving up:
and in fact in later editions of the book all the pages beyond
this point have been left blank to save on printing costs.

The Hitch Hikers Guide to the Galaxy skips lightly over this
tangle of academic abstraction, pausing only to note that the
term "Future Perfect" has been abandoned since it was discovered
not to be."