| May I suggest for 20th Century event, the invention of the motorcar and all vehicles that evolved from the first models. It's incredible how that one machine / invention has influenced our daily lives and been part of nearly every event since - in war and peace.
For 20th Century person - because he initiated WWII - Adolf Hitler made probably the biggest impact. Here you have one man who's decisions, ambitions and evil affected tens of millions of people the consequences of which affected up to a billion people - nations and culture changed as a result of WWII. Life, politics, economies, status of women, religion, races, many nations and individual families were never the same because of and after WWII. |