Not that long ago? It's longer than I've been alive. Any my parents. And my grandparents. You'd have to get to my great-grandparents before they could say they've been alive for 100 years or are able to remember anything about World War II.
In relationship to the age of the planet or the age of the species, no its not a long time. In relationship to the age of the people, it's been long enough.
Works all over Europe. I was talking to American friend who moved from US Mid West to Seattle. It's a distance of ~3,200 km. From where I am in western europe, I'd have to drive to Jerusalem to have a similar distance. Even "far away" places like Moscow were 'only' 2,500km away. The sheer distances in North America are massive compared to Europe.