2028.....

Recently I read an article on history and generations.
It suggested that after world war II, important events happen every 20 years.
1948:UDHR
1968:Vietnam War-May of 1968-civil rights movement
1988: A year before the collapse of Soviet Union, beginning of the end..
2008: The end of capitalism?

What about 1958?
1978- my birthday(too arrogant I know)
1998( maybethe anxiety of the forthcoming millennium)

If history is written every 20 years,I try to think about 2028, what could happen or what would we like to happen?how could we leave our sign in history??????????