George Takei was five years old when he and his family were sent to a Japanese American internment camp during World War II - so probably that among the other political events and upheavals since

Wasn’t he actually interred in a camp during WWII? And he lived through the AIDS crisis as a gay man

Probably his three years in three different internment camps.

He has a graphic novel biography about his childhood growing up in internment camps. I highly recommend it to anyone who wants to understand a bit of American history that they don’t really teach in schools.

Nixon, Reagan, Clinton, Bush, Bush

Just my guess though.