points in time and space, etc.

 

https://en.wikipedia.org/wiki/John_F._Kennedy_Presidential_Library_and_Museum#2013_fire 4-15 

https://www.jfk.org/the-assassination/history-of-john-f-kennedy-memorial-plaza

https://en.wikipedia.org/wiki/List_of_memorials_to_John_F._Kennedy#In_the_United_States

https://twitter.com/JFKLibrary/status/323894638681419776

https://en.wikipedia.org/wiki/Christopher_Walken 1943-3-31 

https://en.wikipedia.org/wiki/Brainstorm_(1983_film) 1983-9-30

https://en.wikipedia.org/wiki/The_Dead_Zone_(film) 1983-1-21