...and give the people of the past 1 modern invention (to change history), what would that invention be?
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[quote][b]Posted by:[/b] byrum Well, by those terms, don't bring an invention, bring knowledge. I think actually the most usefull thing would be the techniques to make steel.[/quote] A good point. Or consider "un-doing" the "tower of Babel". Think what would happen if the world had a common spoken language, written language and numeric system in the bronze age.