This famous 1972 mtg a significant shift in the Cold War balance, uniting the PRC and the US against the Soviet Union. "Nixon goes to China" has since become a metaphor for an unexpected or uncharacteristic action by a politician.
1972 Nixon visit to China - Wikipedia, the free encyclopedia
Robert Lincoln the son of Abraham Lincoln, was waiting to board a crowded train when the train lurched forward and he fell between the platform and the body of the passenger car he was trying to board. But before harm came, he was seized by the collar and yanked to the platform. His rescuer was Edwin Booth the brother of the man that would soon kill President Lincoln.
Rosemary Kennedy - before her father Joe forced her to have a labotomy. Then when it went wrong, leaving her paralyzed, unable to speak well, he placed her in an institution in WI where she lived until she passed away at the age of 86. She had the 'surgery' at age 23 - her family never spoke of her again (including her brother President John F. Kennedy). I'll remember your story, Rose...