My grandparents were born between 1885 and 1895. 58 did a great job of summarizing the life experiences of people back then.
Regarding millenials', they've seen their fair share: 2001- 9/11, 2003- Afghanistan war followed by Iraq war, 2008- the great recession, since Columbine in 1999- be taught how to prepare for mass shootings, aka shelter in place(in school only, on your own at a mall and most other places).